rusty-bidding-bot reference: engine 0.1.0, API 1, rules ad8ad4046d1e36b5
========================================================================

A rule-based bridge bidding engine (Rust, compiled to WebAssembly) bidding
all four hands of a deal in the browser, seat by seat, with the convention
cards you choose. Generated from the page's own vocabulary and the engine it
ships, so it describes exactly the tool served beside it.

  Page:    https://bridge-craftwork.com/rusty-bidding-bot/
  Source:  https://github.com/bridge-craftwork/rusty-bidding-bot
  Engine:  46 convention modules, 2101 rules

PAGE
----

Pick a deal (a Practice-Bidding-Scenarios scenario, a random deal, a
dealer3 script or a deal of your own), the two partnerships' convention
cards, and let the engine bid: one call at a time or to the end. Undo takes
back the last call; the bidding box makes a call of your own, and the
engine carries on from it. Alerted and announced calls are marked; the
meanings of all calls can be shown. The x-ray shows, under the auction,
every rule the engine weighed for a call (its priority, descriptiveness and
why it lost), what each seat had shown and each side's forcing state
before it, and how the engine reads BBA's auction. When the auction ends every hand is
shown with the double-dummy table, par and the contract's result. For a
scenario, BBA's auction of the same deal is shown beside ours. Settings a
card switches on that no rule reads (conventions and treatments the engine
does not play) are flagged.

DEEP LINKS
----------

The page's state is in the URL fragment (never the query string), as
key=value pairs joined by &, values URI-encoded: every INPUT field and
every PARAMS field below whose value is text, a number or true/false.
Examples:

  #scenario=Stayman&board=12
  #random=true&seed=42&board=3&view=S
  #deal=N%3AAK52.KJ7.Q94.K83%20QJ3.Q95.KJ3.QJ74%20T64.AT832.A2.T62%20987.64.T8765.A95&dealer=N&vul=None&auction=1NT%20Pass&ns=21GF-DEFAULT&ew=Precision
  #scenario=Jacoby_2N&board=4&rotate=2&stop=3
  #scenarioScript=Stayman&seed=7
  #scenario=Stayman&board=12&xray=1

stop=N shows the position after N calls (the engine is deterministic, so
the link reproduces them). xray=1 opens the x-ray under the auction (the
rules the engine weighed for a call, what each seat had shown, the forcing
state); xray=all shows it for every call. set is written path=value;path=value. An
uploaded card cannot travel in a link.

JAVASCRIPT API
--------------

window.rustyBiddingBot = { run, validate, getInput, setInput, getOutput }

  run(input, params)       Promise of the output. Loads input (null keeps
                           the current deal), applies params, bids to
                           params.stop and solves the deal when it ends.
                           The page shows the result.
  validate(input, params)  Promise of {ok, diagnostics}: checks without
                           bidding (the deal, dealer, auction legality,
                           cards, params; a dealer3 script's syntax).
  getInput()               The input that reproduces the page's position.
  setInput(input)          Promise: load input into the page (the calls
                           in input.auction; the engine does not bid).
  getOutput()              The page's state as data (below).

input: an object with the fields below, or a string (a PBN deal
"N:<N> <E> <S> <W>", or PBN text of one board).

  scenario    PBS scenario name, e.g. "Stayman"
              Deal a board from the Practice-Bidding-Scenarios corpus for
              this scenario (500 boards each, with BBA's own auction for
              comparison). Its convention cards become the default cards.

  board       integer 1-500
              Which corpus board (scenario), or the board number for dealer
              and vulnerability (random, script). Default 1.

  scenarioScriptPBS scenario name
              Deal fresh boards with that scenario's own dealer script
              (dealer3), from `seed`, instead of its corpus; its cards as
              for scenario.

  script      dealer3 script text
              Deal with dealer3 (the dealer.exe language): the first deal
              the script produces from `seed`. `# convention-card-ns:` /
              `-ew:` lines in the script choose the cards.

  random      true
              A random deal from `seed`.

  seed        integer
              Seed for random and script deals, so a link reproduces the
              deal. Default 1.

  pbn         PBN text of one board
              Its [Deal], [Dealer], [Vulnerable] and [Board] are read; its
              [Auction] is not.

  deal        PBN deal "N:<N> <E> <S> <W>" (hands S.H.D.C) or {"N": hand,
              ...}
              The deal itself.

  dealer      N | E | S | W
              Overrides the source's dealer.

  vul         None | NS | EW | All
              Overrides the source's vulnerability.

  auction     calls from the dealer, e.g. "1NT Pass 2C" (P, X, XX; 1N or
              1NT)
              Calls already made: kept as they are (forced); the engine bids
              from there.

params:

  ns          card
              default: the scenario's card, else 21GF-DEFAULT
              North-South's convention card: a built-in card name (see
              "Cards"), "scenario", {"bbsa": "<.bbsa file text>"} or
              {"json": <Bridge-Classroom card JSON: card_data, or the
              editor's export {schema, name, card_data}>}.

  ew          card
              default: the scenario's card, else 21GF-GIB
              East-West's card, the same forms.

  set         ["path=value", ...]
              default: []
              Card changes for both sides, e.g. "general.style=bba" or
              "notrump.stayman.play=false" (field paths: the conventions
              reference, `card:` lines).

  scoring     MP | IMP
              default: the board's, else MP
              Matchpoints or IMPs; some rules judge by it.

  rotate      0 | 1 | 2 | 3
              default: 0
              Turn the deal this many seats clockwise (dealer and
              vulnerability turn with it). With odd turns the scenario's
              cards change sides too, so each hand keeps its system.

  stop        "end" or an integer
              default: "end"
              How many calls to have on the table when run() returns: "end"
              bids the auction out.

  dd          true | false
              default: true
              Solve the double-dummy table, par and the contract's result
              when the auction ends.

  view        all | N | E | S | W
              default: all
              The page: show all four hands, or only this seat's until the
              auction ends.

  meanings    true | false
              default: false
              The page: show what every call means, not only alerts.

  xray        0 | 1 | all
              default: 0
              X-ray: every rule the engine weighed for each call (priority,
              descriptiveness, why each lost), what every seat had shown and
              each side's forcing state before the call, and how the engine
              read the call; for a scenario, how it read BBA's auction. 1:
              the page shows the selected call's x-ray under the auction
              (the last call when none is selected); all: every call's. With
              1 or all the output carries `xray` (true and false are read as
              1 and 0).

output:

  ok            false when a diagnostic is an error
  source        "scenario" | "random" | "script" | "deal"
  scenario, board
  deal          PBN deal, after rotation; hands {N, E, S, W}
  dealer, vul, scoring, rotate
  cards         {ns, ew}: the names of the cards in play
  calls         [{seat, call, by, why, meaning, alert, rule, noRule, shows}]
                by: "engine" | "you" | "forced" (from input.auction);
                why: the engine's reason for its call; meaning: what the
                call shows to the table; alert: null or {kind: "alert" |
                "announce", text}; noRule: no rule explains the call (a gap
                in the engine's system); shows: the caller's hand as known
                after the call
  complete, next, contract, declarer
  dd            null, or {tricks: {N: {C, D, H, S, NT}, E, S, W},
                par: {score_ns, contracts}, result: {contract, declarer,
                tricks, score_ns}}
  bba           for a scenario, BBA's auction of the deal:
                {auction: [{seat, call, note}]}
  coverage      {ns, ew}: of the settings each card switches on, read (the
                rules use them), ignored (no rule reads them: not played),
                unmapped (settings with no card field: .bbsa keys, card
                JSON paths), other (carding, leads), score = read /
                (read + ignored)
  xray          null unless params.xray is 1 or "all"; then
                {calls: [{index, seat, call, by, hand, engineCall,
                engineWhy, offered, candidates, warnings, before,
                reading}], now, bba}. For each call: candidates are every
                rule the engine weighed for the caller's hand there,
                best-ranked first: {call, explanation, priority,
                descriptiveness, prefer, outcome, rule: {module, file,
                line}}, outcome "chosen", "outranked", "partner's call is
                forcing" or why the hand fails ("hand fails `shows
                hcp>=17`"); engineCall is what the engine bids with that
                hand there (for a call it did not make, too) and offered
                whether any rule offers the call actually made; before is
                the table before the call: {knowledge: {N, E, S, W: {hcp:
                {min, max}, lengths: {S, H, D, C}, balanced, summary,
                shown}}, sides: {ns, ew: {trump, forcing: "none" |
                "round" | "game", forcing_by, ask, answered, summary}}};
                reading is how the table reads the call: {explanation,
                alert, rule, artificial, knowledge (the caller's, after
                it)}. now is the table after the last call, in the shape
                of before. bba (a scenario) is BBA's auction as the engine
                reads it: [{seat, call, note, reading, engineCall}].
  diagnostics   [{severity, message, line?, col?, hint?}]

DIAGNOSTICS
-----------

{severity: "error" | "warning" | "info", message, line?, col?, hint?}.
message starts with the field it concerns (deal.N:, auction:, cards.ns:,
params.scoring:, script:). line and col are 1-based: the column of a call
in an auction string, the line of a key in a .bbsa card, the line and
column in a dealer script. The page lists them under the table.

CARDS
-----

Built in (the Practice-Bidding-Scenarios .bbsa cards):
21GF-DEFAULT, 21GF-Flannery, 21GF-GIB-Bergen, 21GF-GIB, 21GF-Gazzilli,
21GF-MSS, 21GF-MSTandMSS, 21GF-Multi, 21GF-NoInvertedMinor, 21GF-Ogust,
21GF-PolishTwoSuiters, 21GF-Puppet, 21GF-SPECIALS, 21GF-SPECIALS2,
21GF-WJS-MSS, Basic-Bridge, Precision-14-16, Precision

Also: a BBA .bbsa file ({"bbsa": text}), or a Bridge-Classroom convention
card ({"json": card_data}, or the editor's export {"json": {schema, name,
card_data}}: keys such as _bbo_raw are ignored); BC-21-Intermediate is
Bridge-Classroom's 2/1 Intermediate card, built in. The page converts any
card to either format (its JSON download is Bridge-Classroom's export).

CONVENTIONS
-----------

The engine's rules, module by module: the card fields that switch each
module on, and every call it knows with what the call shows.

# rusty-bidding-bot conventions reference
# rbb 0.1.0 rules ad8ad4046d1e36b5
# 46 modules, 2101 rules
#
# Calls: P pass, X double, XX redouble; (..) the opponents' calls.
# x/y any suit, M a major, m a minor. Text in {..} is filled in when bidding.

== base: Natural opening bids
   file: conventions/base/base.bid

   after (any auction)
     when opening
     1S     5+ spades
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, S>=5, S>=H, S>=D, S>=C
            when  style is standard
     1H     5+ hearts
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, H>=5, H>S, H>=D, H>=C
            when  style is standard
     1D     3+ diamonds
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, D>=3, D>C | D>=4, D>=C, H<=4 | H<D, S<=4 | S<D
            when  style is standard
     1C     3+ clubs
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, C>D | (C=3, D=3), H<=4 | H<C, S<=4 | S<C
            when  style is standard
     1S     5+ spades
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, S>=5, S>=H, S>=D, S>=C, hcp>=11 | S<=5 | H<=3 | controls>=3 | (controls=2, !has(A,S), !has(A,H), !has(A,D), !has(A,C))
            when  style is not standard
     1H     5+ hearts
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, H>=5, H>S, H>=D, H>=C, hcp>=11 | H<=5 | S<=3 | controls>=3 | (controls=2, !has(A,S), !has(A,H), !has(A,D), !has(A,C))
            when  style is not standard
     1D     3+ diamonds
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, D>=3, D>C | D>=4, D>=C, H<=4 | H<D, S<=4 | S<D, hcp>=11 | D<=5 | (H<=3, S<=3) | controls>=3 | (controls=2, !has(A,S), !has(A,H), !has(A,D), !has(A,C))
            when  style is not standard
     1C     3+ clubs
            shows hcp>=10, hcp+length_points>=min_open, hcp<=21, C>D | (C=3, D=3), H<=4 | H<C, S<=4 | S<C, hcp>=11 | C<=5
            when  style is not standard
     P      No opening bid
            shows hcp<=min_open-1, hcp+length_points<=min_open-1 | hcp<=9
     P      No opening bid: ten HCP and a six-card suit that does not open
            shows hcp=10, longest=6
            when  style is not standard

   after (any auction)
     when opening, seat=3
     1S     Third seat: 10-11 with a good four-card spade suit
            shows S>=4, hcp=10..11, quality(S)>=good
     1H     Third seat: 10-11 with a good four-card heart suit
            shows H>=4, hcp=10..11, quality(H)>=good, S<=3

   after (any auction)
     when opening, seat=4
     P      Fourth seat: the rule of 15 says pass
            shows hcp<=14
            when  hcp+S<=14

   after (any auction)
     when game_reached
     P      Game reached: nothing more to say

   after (any auction)
     when we.forcing=game, !game_reached
     4{trump} Game in the agreed suit
            when  we.trump is H | we.trump is S
     5{trump} Game in the agreed suit
            when  we.trump is C | we.trump is D
     3N     Game in notrump
            when  we.trump is none
     4S     Game in the spade fit
            shows S+partner.S.min>=8
            when  we.trump is none
     4H     Game in the heart fit
            shows H+partner.H.min>=8
            when  we.trump is none
     5D     Game in the diamond fit
            shows D+partner.D.min>=8
            when  we.trump is none
     5C     Game in the club fit
            shows C+partner.C.min>=8
            when  we.trump is none

== inverted-minors: Inverted minor raises
   file: conventions/base/inverted-minors.bid
   card: minor_openings.inverted_minors.play
   needs: responses

   after 1m (P)
     2m     Inverted raise: 10+, 4+ {m}, no 4-card major, forcing
            shows m>=4, hcp>=10, H<=3, S<=3
     3m     Weak raise: 5-9, 5+ {m}, no 4-card major
            shows m>=5, hcp=5..9, H<=3, S<=3

   after 1C (P) 2C (P)
     2N     12-14 balanced
            shows balanced, hcp<=14
     3N     18-19 balanced
            shows balanced, hcp>=18
     3C     Minimum, unbalanced
            shows !balanced, hcp<=14
     2D     Extras or shape, a diamond stopper
            shows stop(D), hcp>=15 | !balanced
     2H     Extras or shape, a heart stopper
            shows stop(H), hcp>=15 | !balanced, !stop(D)
     2S     Extras or shape, a spade stopper
            shows stop(S), hcp>=15 | !balanced, !stop(H), !stop(D)
     3H     Splinter: heart shortness, four clubs
            shows H<=1, C>=4, hcp>=13
     3S     Splinter: spade shortness, four clubs
            shows S<=1, C>=4, hcp>=13
     4C     Slam try, extras and a fit
            shows C>=4, hcp>=16, !balanced

   after 1C (P) 2C (P) 2N (P)
     3N     Game values
            shows hcp>=13
     3C     Minimum, to play
            shows hcp<=12, !balanced
     P      Minimum, balanced: 2NT is enough
            shows hcp<=12, balanced

   after 1C (P) 2C (P) 3C (P)
     3N     Game values, the majors held
            shows hcp>=13, stop(S), stop(H)
     5C     Game values
            shows hcp>=13
     P      Minimum
            shows hcp<=12

   after 1C (P) 2C (P) 2D (P) | 1C (P) 2C (P) 2H (P) | 1C (P) 2C (P) 2S (P)
     2N     10-12, balanced
            shows hcp<=12, balanced
     3N     Game values
            shows hcp>=13
     3C     10-12, unbalanced
            shows hcp<=12

   after 1C (P) 2C (P) 2D (P) 2N (P) | 1C (P) 2C (P) 2H (P) 2N (P) | 1C (P) 2C (P) 2S (P) 2N (P)
     3N     Game
            shows hcp>=15
     3C     Minimum, unbalanced
            shows hcp<=14

   after 1C (P) 2C (P) 3H (P)
     3N     Hearts held
            shows hcp>=10, stop(H)
     5C     Game in clubs
            shows hcp>=12
     4C     Minimum
            shows hcp<=11

   after 1C (P) 2C (P) 3S (P)
     3N     Spades held
            shows hcp>=10, stop(S)
     5C     Game in clubs
            shows hcp>=12
     4C     Minimum
            shows hcp<=11

   after 1D (P) 2D (P)
     2N     12-14 balanced
            shows balanced, hcp<=14
     3N     18-19 balanced
            shows balanced, hcp>=18
     3D     Minimum, unbalanced
            shows !balanced, hcp<=14
     2H     Extras or shape, a heart stopper
            shows stop(H), hcp>=15 | !balanced
     2S     Extras or shape, a spade stopper
            shows stop(S), hcp>=15 | !balanced, !stop(H)
     3H     Splinter: heart shortness, four diamonds
            shows H<=1, D>=4, hcp>=13
     3S     Splinter: spade shortness, four diamonds
            shows S<=1, D>=4, hcp>=13
     4D     Slam try, extras and a fit
            shows D>=4, hcp>=16, !balanced

   after 1D (P) 2D (P) 2N (P)
     3N     Game values
            shows hcp>=13
     3D     Minimum, to play
            shows hcp<=12, !balanced
     P      Minimum, balanced: 2NT is enough
            shows hcp<=12, balanced

   after 1D (P) 2D (P) 3D (P)
     3N     Game values, the majors held
            shows hcp>=13, stop(S), stop(H)
     5D     Game values
            shows hcp>=13
     P      Minimum
            shows hcp<=12

   after 1D (P) 2D (P) 2H (P) | 1D (P) 2D (P) 2S (P)
     2N     10-12, balanced
            shows hcp<=12, balanced
     3N     Game values
            shows hcp>=13
     3D     10-12, unbalanced
            shows hcp<=12

   after 1D (P) 2D (P) 2H (P) 2N (P) | 1D (P) 2D (P) 2S (P) 2N (P)
     3N     Game
            shows hcp>=15
     3D     Minimum, unbalanced
            shows hcp<=14

   after 1D (P) 2D (P) 3H (P)
     3N     Hearts held
            shows hcp>=10, stop(H)
     5D     Game in diamonds
            shows hcp>=12
     4D     Minimum
            shows hcp<=11

   after 1D (P) 2D (P) 3S (P)
     3N     Spades held
            shows hcp>=10, stop(S)
     5D     Game in diamonds
            shows hcp>=12
     4D     Minimum
            shows hcp<=11

== new-minor-forcing: New Minor Forcing
   file: conventions/base/new-minor-forcing.bid
   card: other_conventions.new_minor_forcing.play
   needs: responder-rebids

   after 1C (P) 1M (P) 1N (P)
     2D     New Minor Forcing: invitational+, 5+ {M} or both majors  [alert]  [artificial]
            shows M>=4, points>=11

   after 1D (P) 1M (P) 1N (P)
     2C     New Minor Forcing: invitational+, 5+ {M} or both majors  [alert]  [artificial]
            shows M>=4, points>=11

   after (any auction)
     when asked nmf
     2H     Three hearts
            shows H=3
            when  partner.H>=4
     2S     Three spades
            shows S=3
            when  partner.S>=4
     2H     Four hearts, not three spades
            shows H>=4, S<=2
            when  partner.S>=4
     2N     Minimum (12-13), no fit
            shows hcp<=13
     3N     Maximum (14), no fit
            shows hcp>=14

   after (any auction)
     when answered nmf
     4H     Game in the heart fit
            shows points>=13, H>=5 | (H>=4, partner.H.min>=4)
            when  partner.H>=3
     3H     Invitational, heart fit
            shows points=11..12, H>=5 | (H>=4, partner.H.min>=4)
            when  partner.H>=3
     4S     Game in the spade fit
            shows points>=13, S>=5
            when  partner.S>=3
     3S     Invitational, spade fit
            shows points=11..12, S>=5
            when  partner.S>=3
     3N     Game, no fit
            shows points>=13
     2N     Invitational, no fit
            shows points=11..12
     P      Accepts the notrump game
            when  partner.last=3N
     P      No game: opener is minimum
            shows points<=12
            when  partner.last=2N

== preempts: Weak two-bids and preempts
   file: conventions/base/preempts.bid
   needs: base

   after (any auction)
     when opening, seat<=2
     2D     Weak two: six diamonds, 4-9
            shows D=6, hcp=4..9, H<=3, S<=3
            when  two_d is weak, style is standard, !vul
     2D     Weak two: six diamonds, 4-9, a good suit
            shows D=6, hcp=4..9, H<=3, S<=3, quality(D)>=good | top5(D)>=3
            when  two_d is weak, style is standard, vul
     2H     Weak two: six hearts, 4-10
            shows H=6, hcp=4..10, S<=3
            when  two_h is weak, style is standard, !vul
     2H     Weak two: six hearts, 4-10, a good suit
            shows H=6, hcp=4..10, S<=3, quality(H)>=good | top5(H)>=3
            when  two_h is weak, style is standard, vul
     2S     Weak two: six spades, 4-10
            shows S=6, hcp=4..10
            when  two_s is weak, style is standard, !vul
     2S     Weak two: six spades, 4-10, a good suit
            shows S=6, hcp=4..10, quality(S)>=good | top5(S)>=3
            when  two_s is weak, style is standard, vul
     2D     Weak two: six diamonds, 4-10
            shows D=6, hcp=4..10, H<=3 | (!has(A,H), !has(K,H), !has(Q,H), !has(J,H)), S<=3 | (!has(A,S), !has(K,S), !has(Q,S), !has(J,S)), hcp<=9 | !has(A,D) | (!has(A,S), !has(A,H), !has(A,C))
            when  two_d is weak, style is not standard, !vul
     2D     Weak two: six diamonds, 4-10, a good suit
            shows D=6, hcp=4..10, quality(D)>=good | top5(D)>=3, H<=3 | (!has(A,H), !has(K,H), !has(Q,H), !has(J,H)), S<=3 | (!has(A,S), !has(K,S), !has(Q,S), !has(J,S)), hcp<=9 | !has(A,D) | (!has(A,S), !has(A,H), !has(A,C))
            when  two_d is weak, style is not standard, vul
     2H     Weak two: six hearts, 4-10
            shows H=6, hcp=4..10, S<=3 | (!has(A,S), !has(K,S), !has(Q,S), !has(J,S)), hcp<=9 | !has(A,H) | (!has(K,H), !has(A,S), !has(A,D), !has(A,C))
            when  two_h is weak, style is not standard, !vul
     2H     Weak two: six hearts, 4-10, a good suit
            shows H=6, hcp=4..10, quality(H)>=good | top5(H)>=3, S<=3 | (!has(A,S), !has(K,S), !has(Q,S), !has(J,S)), hcp<=9 | !has(A,H) | (!has(K,H), !has(A,S), !has(A,D), !has(A,C))
            when  two_h is weak, style is not standard, vul
     2S     Weak two: six spades, 4-10
            shows S=6, hcp=4..10, H<=3 | (!has(A,H), !has(K,H), !has(Q,H), !has(J,H)), hcp<=9 | !has(A,S) | (!has(K,S), !has(A,H), !has(A,D), !has(A,C))
            when  two_s is weak, style is not standard, !vul
     2S     Weak two: six spades, 4-10, a good suit
            shows S=6, hcp=4..10, quality(S)>=good | top5(S)>=3, H<=3 | (!has(A,H), !has(K,H), !has(Q,H), !has(J,H)), hcp<=9 | !has(A,S) | (!has(K,S), !has(A,H), !has(A,D), !has(A,C))
            when  two_s is weak, style is not standard, vul

   after (any auction)
     when opening, seat=3
     2D     Weak two, third seat: a good five-card suit will do
            shows D>=5, D<=6, hcp=4..9, H<=3, S<=3
            when  two_d is weak, D>=6 | quality(D)>=good
     2H     Weak two, third seat: a good five-card suit will do
            shows H>=5, H<=6, hcp=4..9, S<=3
            when  two_h is weak, H>=6 | quality(H)>=good
     2S     Weak two, third seat: a good five-card suit will do
            shows S>=5, S<=6, hcp=4..9
            when  two_s is weak, S>=6 | quality(S)>=good

   after (any auction)
     when opening, seat=4
     2D     Fourth seat: six diamonds, opening values
            shows D>=6, hcp>=12, hcp<=21
            when  two_d is weak
     2H     Fourth seat: six hearts, opening values
            shows H>=6, hcp>=12, hcp<=21
            when  two_h is weak
     2S     Fourth seat: six spades, opening values
            shows S>=6, hcp>=12, hcp<=21
            when  two_s is weak

   after (any auction)
     when opening, seat<=3
     3C     Preempt: seven clubs, 4-9
            shows C=7, hcp=4..9, H<=3, S<=3
            when  !vul | quality(C)>=good | top5(C)>=3
     3D     Preempt: seven diamonds, 4-9
            shows D=7, hcp=4..9, H<=3, S<=3
            when  !vul | quality(D)>=good | top5(D)>=3
     3H     Preempt: seven hearts, 4-9
            shows H=7, hcp=4..9, S<=3
            when  !vul | quality(H)>=good | top5(H)>=3
     3S     Preempt: seven spades, 4-9
            shows S=7, hcp=4..9
            when  !vul | quality(S)>=good | top5(S)>=3
     4H     Preempt: eight hearts
            shows H>=8, hcp=4..10, S<=3
     4S     Preempt: eight spades
            shows S>=8, hcp=4..10
     5C     Preempt: eight clubs
            shows C>=8, hcp=4..10, H<=3, S<=3
     5D     Preempt: eight diamonds
            shows D>=8, hcp=4..10, H<=3, S<=3
     3D     Preempt: six diamonds and four clubs, 4-8
            shows D=6, C=4, hcp=4..8
            when  !vul, seat<=2, style is bba
     3C     Preempt: six clubs and four diamonds, 4-8
            shows C=6, D=4, hcp=4..8
            when  !vul, seat<=2, style is bba

   after 3H (P)
     4H     Raise to game
            shows H>=4 | (H=3, tp(H)>=9) | (H=2, hcp>=15)

   after 3S (P)
     4S     Raise to game
            shows S>=4 | (S=3, tp(S)>=9) | (S=2, hcp>=15)

   after 3C (P)
     5C     Game in clubs: 17+ and a doubleton
            shows C>=2, hcp>=17
     5C     Game in clubs
            shows C>=4, shortest<=1 | hcp>=12 | (C>=3, hcp>=15, shortest<=1)
            when  !vul
     4C     Preemptive raise
            shows C>=3, hcp<=11
            when  !vul
     5C     Game in clubs
            shows C>=3, hcp>=15 | (C>=4, hcp>=12, shortest<=1)
            when  vul
     4C     Invitational raise
            shows C>=2, hcp=9..14
            when  vul

   after 3D (P)
     5D     Game in diamonds: 17+ and a doubleton
            shows D>=2, hcp>=17
     5D     Game in diamonds
            shows D>=4, shortest<=1 | hcp>=12 | (D>=3, hcp>=15, shortest<=1)
            when  !vul
     4D     Preemptive raise
            shows D>=3, hcp<=11
            when  !vul
     5D     Game in diamonds
            shows D>=3, hcp>=15 | (D>=4, hcp>=12, shortest<=1)
            when  vul
     4D     Invitational raise
            shows D>=2, hcp=9..14
            when  vul

== rebids: Opener's rebid
   file: conventions/base/rebids.bid
   needs: responses

   after 1x (P) 1y (P)
     2y     Raise: 4+ {y}, minimum
            shows y>=4, tp(y)<=15
            when  style is not bba
     3y     Jump raise: 4+ {y}, 16-18
            shows y>=4, tp(y)=16..18
            when  y is H | y is S, style is not bba
     2y     Raise (BBA): 4+ {y}, minimum
            shows y>=4, hcp+length_points<=14
            when  style is bba
     3y     Jump raise (BBA): 4+ {y}, 15-17
            shows y>=4, hcp+length_points>=15, hcp<=17, hcp<=16 | tp(y)<=18
            when  y is H | y is S, style is bba
     3y     Jump raise: 4+ {y}, 16+
            shows y>=4, tp(y)>=16
            when  y is C | y is D
     2x     Rebids {x}: 6+, minimum
            shows x>=6, suit_points<=15
     3x     Jump rebid: 6+ {x}, 16-18
            shows x>=6, suit_points=16..18
            when  style is not bba
     3x     Jump rebid (BBA): 6+ {x}, 15-18
            shows x>=6, hcp=15..18
            when  style is bba
     2x     Rebids {x}: five or more, too weak to reverse
            shows x>=5, suit_points<=18
            when  x is C | x is D
     1N     12-14 HCP, balanced
            shows balanced | shape 5-4-2-2, hcp=12..14, y<=3
     2N     18+ HCP, balanced
            shows balanced | shape 5-4-2-2, hcp>=18, y<=3
     2N     18-19 HCP, balanced
            shows balanced, hcp=18..19, y<=3
     1N     Minimum, no better rebid
            shows hcp<=14, y<=3
     3x     Jump rebid: 6+ {x}, too good for a simple rebid
            shows x>=6, suit_points>=16
     2N     15-17 balanced, no other rebid
            shows balanced, hcp=15..17, y<=3

   after 1x (P) 1M (P)
     4M     Game raise: 4+ {M}, 19+
            shows M>=4, tp(M)>=19
            when  style is not bba
     4M     Game raise (BBA): 4+ {M}, 18 HCP, or 17 and 19 support points
            shows M>=4, hcp>=18 | (hcp>=17, tp(M)>=19)
            when  style is bba

   after 1C (P) 1D (P)
     1N     12-14 HCP, balanced (Walsh: a major may be hidden)
            shows balanced | shape 5-4-2-2, hcp=12..14
            when  style is not bba, style is not standard
     1N     12-14 HCP, balanced, no four-card major
            shows balanced | shape 5-4-2-2, hcp=12..14, H<=3, S<=3
            when  style is standard
     1H     4+ hearts, up to 18
            shows H>=4, suit_points<=18, H>=S
            when  style is not bba | S>=4
     1S     4+ spades, up to 18
            shows S>=4, suit_points<=18, S>H
            when  style is not bba
     2H     Jump shift: 4+ hearts, 19+
            shows H>=4, suit_points>=19
            when  style is not bba
     2S     Jump shift: 4+ spades, 19+
            shows S>=4, suit_points>=19
            when  style is not bba
     1N     BBA: 12-17, no six clubs, not both majors
            shows hcp=12..17, H<=4, S<=4, H<=3 | S<=3, C<=5, D<=4, shortest>=2 | C=5
            when  style is bba
     2H     Jump shift (BBA): 4+ hearts, 18+
            shows H>=4, hcp>=18, H>=S
            when  style is bba
     2S     Jump shift (BBA): 4+ spades, 18+
            shows S>=4, hcp>=18, S>H
            when  style is bba

   after 1C (P) 1H (P)
     1S     4+ spades, up to 18
            shows S>=4, suit_points<=18
            when  H<=3
     2D     Reverse: 4+ diamonds, longer clubs, 17+
            shows D>=4, C>D, suit_points>=17
     2S     Jump shift: 4+ spades, 19+
            shows S>=4, suit_points>=19
     3D     Jump shift: 4+ diamonds, 19+
            shows D>=4, suit_points>=19

   after 1C (P) 1S (P)
     2D     Reverse: 4+ diamonds, longer clubs, 17+
            shows D>=4, C>D, suit_points>=17
     2H     Reverse: 4+ hearts, longer clubs, 17+
            shows H>=4, C>H, suit_points>=17
     3D     Jump shift: 4+ diamonds, 19+
            shows D>=4, suit_points>=19
     3H     Jump shift: 4+ hearts, 19+
            shows H>=4, suit_points>=19

   after 1D (P) 1H (P)
     1S     4+ spades, up to 18
            shows S>=4, suit_points<=18
            when  H<=3
     1N     12-14 HCP, balanced
            shows balanced, hcp=12..14, H<=3
            when  style is not bba
     1N     12-13 HCP, balanced: four clubs too (BBA)
            shows balanced, hcp=12..13, H<=3, C=4
            when  style is bba
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18, D>=C
     2S     Jump shift: 4+ spades, 19+
            shows S>=4, suit_points>=19
     3C     Jump shift: 4+ clubs, 19+
            shows C>=4, suit_points>=19

   after 1D (P) 1S (P)
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18, D>=C
     1N     12-14 HCP, balanced
            shows balanced, hcp=12..14, S<=3
            when  style is not bba
     1N     12-13 HCP, balanced: four clubs too (BBA)
            shows balanced, hcp=12..13, S<=3, C=4
            when  style is bba
     2H     Reverse: 4+ hearts, longer diamonds, 17+
            shows H>=4, D>H, suit_points>=17
     3C     Jump shift: 4+ clubs, 19+
            shows C>=4, suit_points>=19
     3H     Jump shift: 4+ hearts, 19+
            shows H>=4, suit_points>=19

   after 1H (P) 1S (P)
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18
     2D     4+ diamonds, up to 18
            shows D>=4, suit_points<=18, D>=C | C<=3
     3C     Jump shift: 4+ clubs, 19+
            shows C>=4, suit_points>=19
     3D     Jump shift: 4+ diamonds, 19+
            shows D>=4, suit_points>=19

   after 1x (P) 1N (P)
     P      Minimum, nothing more to show
            shows suit_points<=15
     P      Balanced, no game opposite 6-10
            shows balanced, hcp<=17
     2x     Rebids {x}: five or more, too good to pass and no reverse
            shows x>=5, suit_points=16..18
     2x     Rebids {x}: 6+, minimum
            shows x>=6, suit_points<=15
     3x     Jump rebid: 6+ {x}, 16-18
            shows x>=6, suit_points=16..18
            when  style is not bba
     2N     18-19 HCP, balanced
            shows balanced, hcp=18..19
     3N     18+: game, no better description
            shows hcp>=18
     3x     Jump rebid (BBA): 6+ {x}, 15-18
            shows x>=6, hcp=15..18
            when  style is bba

   after 1S (P) 1N (P)
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18
     2D     4+ diamonds, up to 18
            shows D>=4, suit_points<=18, D>=C | C<=3
     2H     4+ hearts, up to 18
            shows H>=4, suit_points<=18
     3C     Jump shift: 4+ clubs, 19+
            shows C>=4, suit_points>=19
     3D     Jump shift: 4+ diamonds, 19+
            shows D>=4, suit_points>=19
     3H     Jump shift: 4+ hearts, 19+
            shows H>=4, suit_points>=19
     3H     Jump shift (BBA): 4+ hearts, 17+
            shows H>=4, suit_points>=17
            when  style is bba
     3C     Jump shift (BBA): 4+ clubs, 18+
            shows C>=4, suit_points>=18
            when  style is bba
     3D     Jump shift (BBA): 4+ diamonds, 18+
            shows D>=4, suit_points>=18
            when  style is bba
     4H     5-5 in the majors, 16+ (BBA)
            shows H>=5, hcp>=16
            when  style is bba

   after 1H (P) 1N (P)
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18
     2D     4+ diamonds, up to 18
            shows D>=4, suit_points<=18, D>=C | C<=3
     2S     Reverse: 4+ spades, longer hearts, 17+
            shows S>=4, H>S, suit_points>=17
     3C     Jump shift: 4+ clubs, 19+
            shows C>=4, suit_points>=19
     3D     Jump shift: 4+ diamonds, 19+
            shows D>=4, suit_points>=19
     3C     Jump shift (BBA): 4+ clubs, 18+
            shows C>=4, suit_points>=18
            when  style is bba
     3D     Jump shift (BBA): 4+ diamonds, 18+
            shows D>=4, suit_points>=18
            when  style is bba

   after 1D (P) 1N (P)
     2C     4+ clubs, up to 18
            shows C>=4, suit_points<=18
     2H     Reverse: 4+ hearts, longer diamonds, 17+
            shows H>=4, D>H, suit_points>=17
     2S     Reverse: 4+ spades, longer diamonds, 17+
            shows S>=4, D>S, suit_points>=17

   after 1C (P) 1N (P)
     2D     Reverse: 4+ diamonds, longer clubs, 17+
            shows D>=4, C>D, suit_points>=17
     2H     Reverse: 4+ hearts, longer clubs, 17+
            shows H>=4, C>H, suit_points>=17
     2S     Reverse: 4+ spades, longer clubs, 17+
            shows S>=4, C>S, suit_points>=17

   after 1m (P) 1y (P) | 1m (P) 2y (P)
     3N     18-21 with six or more {m}: to play
            shows m>=6, hcp=18..21
            when  y is not m

   after 1M (P) 1y (P) | 1M (P) 2y (P)
     4M     19+ with six or more {M}: game
            shows M>=6, hcp+length_points>=19
            when  y is not M, style is not bba
     4M     Game (BBA): seven {M} and 13+, or six and 19+
            shows M>=6, (M>=7, hcp>=13) | hcp>=19
            when  y is not M, style is bba

   after 1m (P) 1N (P)
     3N     18-21 with six or more {m}: to play
            shows m>=6, hcp=18..21

   after 1M (P) 1N (P)
     4M     19+ with six or more {M}: game
            shows M>=6, hcp+length_points>=19
            when  style is not bba
     4M     Game (BBA): seven {M} and 13+, or six and 19+
            shows M>=6, (M>=7, hcp>=13) | hcp>=19
            when  style is bba

   after 1x (P) 2x (P)
     P      Minimum: no game
            shows tp(x)<=16
            when  style is not bba | x is C | x is D
     3x     Invitation: 17-18 with the fit
            shows tp(x)=17..18
            when  style is not bba | x is C | x is D

   after 1M (P) 2M (P)
     4M     Game: 19+ with the fit
            shows tp(M)>=19
            when  style is not bba
     P      Minimum (BBA): up to 15 HCP
            shows hcp<=15, M<=5 | hcp<=13
            when  style is bba
     3M     Invitation (BBA): 16 HCP, or 14-15 with six trumps
            shows (hcp=16, M<=5, tp(M)<=18) | (hcp=14..15, M>=6)
            when  style is bba
     4M     Game (BBA): 17+, or 16 with six trumps or shortness
            shows hcp>=17 | (hcp=16, M>=6 | tp(M)>=19)
            when  style is bba

   after 1m (P) 2m (P)
     2N     18-19 HCP, balanced
            shows balanced, hcp=18..19
     3N     20-21 HCP, balanced
            shows balanced, hcp>=20
     3N     Nine tricks: a running {m}, the other suits stopped
            shows m>=6, quality(m)>=2, hcp>=16, stop(C) | m is C, stop(D) | m is D, stop(H), stop(S)
     5{m}   Game: 19+ support points, no notrump
            shows tp(m)>=19

   after 1M (P) 3M (P)
     4M     Accepts the limit raise
            shows tp(M)>=15
     P      Declines: minimum
            shows tp(M)<=14

   after 1m (P) 3m (P)
     3N     Accepts, balanced: 14+
            shows hcp>=14, balanced | semibalanced
     5m     Accepts, unbalanced: game in the minor
            shows hcp>=14
     P      Declines: minimum
            shows hcp<=13

   after 1m (P) 2N (P)
     3N     Accepts: 14+
            shows hcp>=14
     P      Declines: 12-13
            shows hcp<=13

   after 1M (P) 2x (P)
     when x is not M
     2M     Rebids {M}: 5+, minimum
            shows M>=5, suit_points<=15
     2M     Rebids {M}: five or more, too weak to reverse
            shows M>=5, suit_points<=18
     3M     Jump rebid: 6+ {M}, 16-18
            shows M>=6, suit_points=16..18
     3x     Raise: 4+ {x}
            shows x>=4
     2N     15-17 HCP, balanced
            shows balanced, hcp=15..17
     3N     18-19 HCP, balanced
            shows balanced, hcp=18..19

   after 1S (P) 2C (P)
     2D     4+ diamonds
            shows D>=4
     2H     4+ hearts
            shows H>=4

   after 1S (P) 2D (P)
     2H     4+ hearts
            shows H>=4
     3C     4+ clubs, extras
            shows C>=4, suit_points>=16

   after 1S (P) 2H (P)
     3H     Raise: 3+ hearts
            shows H>=3
     4H     Game raise: 3+ hearts, 14-17
            shows H>=3, suit_points=14..17
     3C     4+ clubs, extras
            shows C>=4, suit_points>=16
     3D     4+ diamonds, extras
            shows D>=4, suit_points>=16

   after 1H (P) 2C (P)
     2D     4+ diamonds
            shows D>=4
     2S     Reverse: 4+ spades, longer hearts, 17+
            shows S>=4, H>S, suit_points>=17

   after 1H (P) 2D (P)
     2S     Reverse: 4+ spades, longer hearts, 17+
            shows S>=4, H>S, suit_points>=17
     3C     4+ clubs, extras
            shows C>=4, suit_points>=16

   after 1D (P) 2C (P)
     2D     Rebids diamonds: minimum
            shows D>=5, suit_points<=15
     3D     Jump rebid: 6+ diamonds, 16-18
            shows D>=6, suit_points=16..18
     2D     Rebids diamonds: five or more, no better rebid
            shows D>=5, suit_points<=18
     3C     Raise: 4+ clubs
            shows C>=4
     2H     4+ hearts
            shows H>=4
     2S     4+ spades
            shows S>=4
     2N     12-14 HCP, balanced
            shows balanced, hcp=12..14
     3N     18-19 HCP, balanced
            shows balanced, hcp=18..19

   after 1x (P) 1N (P) 2z (P) 3x (P)
     when z is not x
     4x     Game in the fit: 19+
            shows suit_points>=19
            when  x is H | x is S
     5x     Game in {x}: 19+ with six
            shows x>=6, suit_points>=20
            when  x is C | x is D
     3N     Game in notrump: 19+
            shows hcp>=19
            when  x is C | x is D
     P      Minimum for the reverse: play three
            shows suit_points<=19

   after 1x (P) 3y (P)
     when y is not x, we.trump is none
     P      Minimum, no fit
            shows hcp<=13
     3N     Accepts: 14+, to play notrump
            shows hcp>=14, y<=2 | y is C | y is D
     4y     Accepts in the fit: 14+
            shows y>=2, suit_points>=14
            when  y is H | y is S
     4x     Accepts in my own suit: seven, or six with four top honours
            shows x>=7 | (x>=6, top5(x)>=4), hcp>=14, y<=1 | y is C | y is D
            when  x is H | x is S

   after 1x (P) 1y (P) 1z (P) 1M (P)
     2M     Raise: 4+ {M}, minimum
            shows M>=4, tp(M)<=15
     3M     Jump raise: 4+ {M}, 16-18
            shows M>=4, tp(M)=16..18
     4M     Game raise: 4+ {M}, 19+
            shows M>=4, tp(M)>=19
     1N     Minimum, no fit for {M}
            shows M<=3, hcp<=15
     2N     16-18, no fit for {M}
            shows M<=3, hcp=16..18
     2x     Six or more {x}
            shows x>=6, suit_points<=15

   after (any auction)
     when asked signoff, !partner.opened
     P      Nothing to add: partner is limited
     2x     Six or more {x}: a better spot
            shows x>=6, suit_points<=15
            when  maybe partner.x<=2
     3x     Six or more {x}, 16-18: one more try
            shows x>=6, suit_points=16..18
     3x     Raise: 16-18 with the fit
            shows x>=3, suit_points=16..18
            when  partner.x>=5
     2y     Preference: three or more {y}
            shows y>=3
            when  partner.y>=5
     4M     Game: 6+ {M}, 19+
            shows M>=6, suit_points>=19
     4M     Game in the fit: 19+
            shows M>=3, suit_points>=19
            when  partner.M>=4

   after (any auction)
     when asked signoff, partner.opened
     P      Nothing to add: partner's rebid was a minimum

   after (any auction)
     when asked invite(m)
     P      Declines: no more than a minimum
     3N     Accepts, in notrump: 14+ and a shape for it
            shows hcp>=14, balanced | semibalanced
     5m     Accepts in {m}: 18+ with the fit
            shows hcp>=18, m>=5

   after 1x (*) 1z (*)
     when they.bid, z is not x
     cheapest(z) Raise: four or more {z}, minimum
            shows z>=4, tp(z)<=15
            when  partner.z>=4
     jump(z) Jump raise: four or more {z}, 16-18
            shows z>=4, tp(z)=16..18
            when  partner.z>=4, z is H | z is S
     jump(z) Jump raise: four or more {z}, 16+
            shows z>=4, tp(z)>=16
            when  partner.z>=4, z is C | z is D
     4{z}   Game raise: four or more {z}, 19+
            shows z>=4, tp(z)>=19
            when  partner.z>=4, z is H | z is S
     cheapest(x) Rebids {x}: six or more, minimum
            shows x>=6, suit_points<=15
     jump(x) Jump rebid: six or more {x}, 16-18
            shows x>=6, suit_points=16..18
     4{x}   Game: six or more {x}, 19+
            shows x>=6, suit_points>=19
            when  x is H | x is S
     P      Nothing to say: they have bid again

   after 1x (*) 1z (P)
     when they.bid, z is not x
     1H     Four or more hearts, up to 18
            shows H>=4, suit_points<=18
            when  x is not H, z is not H, maybe lho.H<=4, maybe rho.H<=4
     1S     Four or more spades, up to 18
            shows S>=4, suit_points<=18
            when  x is not S, z is not S, maybe lho.S<=4, maybe rho.S<=4
     cheapest(C) Four or more clubs, up to 18
            shows C>=4, suit_points<=18
            when  x is not C, z is not C, maybe lho.C<=4, maybe rho.C<=4
     cheapest(D) Four or more diamonds, up to 18
            shows D>=4, suit_points<=18
            when  x is H | x is S, z is not D, maybe lho.D<=4, maybe rho.D<=4
     2H     Reverse: four or more hearts, longer {x}, 17+
            shows H>=4, x>H, suit_points>=17
            when  x is C | x is D, z is not H, maybe lho.H<=4, maybe rho.H<=4
     2S     Reverse: four or more spades, longer {x}, 17+
            shows S>=4, x>S, suit_points>=17
            when  x is not S, z is not S, maybe lho.S<=4, maybe rho.S<=4
     2D     Reverse: four or more diamonds, longer clubs, 17+
            shows D>=4, C>D, suit_points>=17
            when  x is C, z is not D, maybe lho.D<=4, maybe rho.D<=4
     cheapest(x) Rebids {x}: five or more, nothing better to say
            shows x>=5, suit_points<=18
     cheapest(x) Partner's free bid needs an answer

   after 1x (1y) 1z (P) | 1x (2y) 1z (P)
     when y is not x, z is not x, z is not y
     cheapest(N) 12-14 balanced with a stopper in {y}
            shows balanced | shape 5-4-2-2, hcp=12..14, z<=3
            when  stop(y)
     jump(N) 18-19 balanced with a stopper in {y}
            shows balanced, hcp=18..19, z<=3
            when  stop(y)
     3N     Game: 19+ with a stopper in {y}
            shows hcp>=19, stop(y), z<=3
     cheapest(y) Cue bid: 19+, forcing to game  [alert]  [artificial]
            shows suit_points>=19

   after 1x (X) 1z (P)
     when z is not x
     cheapest(N) 12-14 balanced
            shows balanced | shape 5-4-2-2, hcp=12..14, z<=3
     jump(N) 18-19 balanced
            shows balanced, hcp=18..19, z<=3

   after 1x (X) 1z (1y)
     when z is not x, y is not x, y is not z
     X      18+: a strong hand, more to say
            shows hcp>=18
            when  !support_x | z is C | z is D | !((support_through is none, rho.last<=2{z}) | rho.last<=support_through)

   after 1x (X) 1z (1y) X (P) * (P)
     when z is not x, y is not x, y is not z, !answered support
     cheapest(N) 18-19 balanced with a stopper in {y}
            shows balanced, hcp=18..19, stop(y)
     3N     20+ balanced with a stopper in {y}
            shows balanced, hcp>=20, stop(y)
     cheapest(x) Six or more {x}, the strong hand
            shows x>=6
     P      Partner's answer is as far as we go

   after 1x (*) 2z (*) | 1x (*) 3z (*) | 1x (*) 4z (*)
     when they.bid, z is not x
     cheapest(z) Raise: three or more {z} for partner's five
            shows z>=3, tp(z)<=17
            when  partner.z>=5
     cheapest(z) Raise: four or more {z}, minimum
            shows z>=4, tp(z)<=17
            when  partner.z>=4, maybe partner.z<=4
     4{z}   Game raise: 18+ with the fit
            shows z>=3, tp(z)>=18
            when  partner.z>=4, z is H | z is S
     cheapest(x) Rebids {x}: six or more, minimum
            shows x>=6, suit_points<=15
     jump(x) Jump rebid: six or more {x}, 16-18
            shows x>=6, suit_points=16..18
     4{x}   Game: six or more {x}, 19+
            shows x>=6, suit_points>=19
            when  x is H | x is S
     P      Minimum with no fit: partner's bid was limited
            shows suit_points<=15
     cheapest(x) Rebids {x}: five or more, nothing better to say
            shows x>=5
     cheapest(S) Four or more spades
            shows S>=4, suit_points<=18
            when  x is not S, z is not S, maybe lho.S<=4, maybe rho.S<=4, we.forcing=round, partner.z>=5
     cheapest(H) Four or more hearts
            shows H>=4, suit_points<=18
            when  x is not H, z is not H, maybe lho.H<=4, maybe rho.H<=4, we.forcing=round, partner.z>=5
     cheapest(z) Raise with extras: 18+, forcing to game
            shows z>=3, tp(z)>=18
            when  partner.z>=5, new_suit_forcing
     cheapest(x) Forced to bid: nothing better to say
            when  we.forcing=round, partner.z>=5
     P      Nothing to say

   after 1x (1y) 2z (P) | 1x (2y) 2z (P) | 1x (2y) 3z (P) | 1x (3y) 3z (P)
     when y is not x, z is not x, z is not y
     cheapest(N) Balanced with a stopper in {y}, minimum
            shows balanced | shape 5-4-2-2, hcp<=15, z<=3
            when  stop(y)
     jump(N) 16-18 balanced with a stopper in {y}
            shows balanced, hcp=16..18, z<=3
            when  stop(y)
     3N     Game: 17+ with a stopper in {y}
            shows hcp>=17, stop(y)
     cheapest(y) Cue bid: 18+, forcing to game  [alert]  [artificial]
            shows suit_points>=18

   after 1x (X) 2z (P)
     when z is not x
     cheapest(N) Balanced, minimum
            shows balanced | shape 5-4-2-2, hcp<=15, z<=3

   after 1x (*) 2x (*)
     when they.bid
     P      Minimum: no game
            shows tp(x)<=16
     cheapest(x) Invitation: 17-18 with the fit
            shows tp(x)=17..18
     4{x}   Game: 19+ with the fit
            shows tp(x)>=19
            when  x is H | x is S
     3N     Game: 19+ balanced, nowhere else to play
            shows balanced, hcp>=19
            when  x is C | x is D
     P      Nothing to say

   after 1x (*) 3x (*)
     when they.bid
     4{x}   Game: 19+ opposite a preemptive raise
            shows tp(x)>=19
            when  x is H | x is S
     5{x}   Game: 19+ opposite a preemptive raise
            shows tp(x)>=19
            when  x is C | x is D
     P      Nothing to add to a preemptive raise

   after 1x (2y) 3x (P)
     when y is not x, !partner.jumped
     3N     Game: 16+ with a stopper in {y}
            shows hcp>=16, stop(y)
            when  x is C | x is D
     4{x}   Game: 17+ support points
            shows tp(x)>=17
            when  x is H | x is S
     5{x}   Game in the minor: 18+
            shows hcp>=18
            when  x is C | x is D

   after 1x (*) 4x (*)
     when they.bid, x is C | x is D
     5{x}   Game: 16+ with the fit
            shows hcp>=16
     P      No game
            shows hcp<=15

   after 1x (*) 1N (*)
     when they.bid
     P      Minimum: partner is limited
            shows suit_points<=15
     cheapest(x) Rebids {x}: six or more, minimum
            shows x>=6, suit_points<=15
     jump(x) Jump rebid: six or more {x}, 16-18
            shows x>=6, suit_points=16..18
     jump(N) 18-19 balanced
            shows balanced, hcp=18..19
     4{x}   Game: six or more {x}, 19+
            shows x>=6, suit_points>=19
            when  x is H | x is S
     cheapest(N) 16-17: invites 3NT
            shows hcp=16..17
            when  !lho.last=X
     jump(N) 18+: game opposite 6-10
            shows hcp>=18
            when  !lho.last=X
     P      Nothing to say

   after 1x (X) XX (*)
     cheapest(x) Rebids {x}: six or more
            shows x>=6, suit_points<=18
     cheapest(S) Five or more spades
            shows S>=5, suit_points<=18
            when  x is not S, maybe lho.S<=4, maybe rho.S<=4
     cheapest(H) Five or more hearts
            shows H>=5, S<=4, suit_points<=18
            when  x is not H, maybe lho.H<=4, maybe rho.H<=4
     cheapest(D) Five or more diamonds
            shows D>=5, S<=4, H<=4, suit_points<=18
            when  x is not D, maybe lho.D<=4, maybe rho.D<=4
     cheapest(C) Five or more clubs
            shows C>=5, S<=4, H<=4, suit_points<=18
            when  x is not C, maybe lho.C<=4, maybe rho.C<=4
     P      Partner has the values: over to him

   after 1x (*) P (*)
     when they.bid, maybe lho.hcp<=14, maybe rho.hcp<=14
     cheapest(x) Rebids {x}: six or more, a free bid with extras
            shows x>=6, suit_points=13..18

   after 1x (*) P (*)
     when they.bid
     P      Partner has nothing: let them have it

   after 1x (1y) P (P) | 1x (2y) P (P) | 1x (3y) P (P)
     when y is not x
     X      Reopening double: short in {y}, support for the other suits
            shows y<=2, hcp>=12, (S>=3 | x is S | y is S, H>=3 | x is H | y is H, D>=3 | x is D | y is D, C>=3 | x is C | y is C) | hcp>=16
     cheapest(S) Five or more spades, 14+
            shows S>=5, suit_points>=14
            when  x is not S, y is not S
     cheapest(H) Five or more hearts, 14+
            shows H>=5, S<=4, suit_points>=14
            when  x is not H, y is not H
     cheapest(D) Five or more diamonds, 14+
            shows D>=5, S<=4, H<=4, suit_points>=14
            when  x is not D, y is not D
     cheapest(C) Five or more clubs, 14+
            shows C>=5, S<=4, H<=4, D<=4, suit_points>=14
            when  x is not C, y is not C
     cheapest(N) 18-19 balanced with a stopper in {y}
            shows balanced, hcp=18..19
            when  stop(y)

   after (any auction)
     when asked nt_invite, !partner.opened
     3S     Six or more spades: not a maximum
            shows S>=6, strength<=invite
     4S     Six or more spades: accepts
            shows S>=6, strength>=game
     3H     Six or more hearts: not a maximum
            shows H>=6, S<=3, strength<=invite
     4H     Six or more hearts: accepts
            shows H>=6, S<=3, strength>=game

== responder-rebids: Responder's second call
   file: conventions/base/responder-rebids.bid
   needs: rebids

   after 1x (P) 1y (P) 1N (P)
     P      Weak: no game
            shows points<=10
     2y     Weak: 6+ {y}
            shows y>=6, points<=10
            when  y is H | y is S
     3y     Invitational: 6+ {y}, 11-12
            shows y>=6, points=11..12
     2N     Invitational: 11-12
            shows points=11..12, y<=5
     3N     Game: 13+
            shows points>=13, y<=5 | y is C | y is D
     2x     Weak: 5+ {x}
            shows x>=5, points<=10

   after 1x (P) 1M (P) 1N (P)
     4M     Game: 6+ {M}
            shows M>=6, points>=13

   after 1M (P) 1y (P) 1N (P)
     3M     Invitational: 3 {M}, 11-12 support points
            shows M=3, tp(M)=11..12

   after 1C (P) 1D (P) 1N (P)
     2H     Responder's reverse: 4+ hearts, 5+ diamonds, game forcing
            shows H>=4, D>=5, points>=13
     2S     Responder's reverse: 4+ spades, 5+ diamonds, game forcing
            shows S>=4, D>=5, points>=13

   after 1C (P) 1H (P) 1N (P)
     2D     4+ diamonds, 5+ hearts, not forcing
            shows D>=4, H>=5, points<=12
            when  !nmf
     2S     Responder's reverse: 4+ spades, 5+ hearts, game forcing
            shows S>=4, H>=5, points>=13

   after 1C (P) 1S (P) 1N (P)
     3H     Four hearts, five spades, game forcing
            shows H>=4, S>=5, points>=13
     2D     4+ diamonds, 5+ spades, not forcing
            shows D>=4, S>=5, points<=12
            when  !nmf
     2H     4+ hearts, 5+ spades, not forcing
            shows H>=4, S>=5, points<=12

   after 1D (P) 1H (P) 1N (P)
     2C     4+ clubs, 5+ hearts, not forcing
            shows C>=4, H>=5, points<=12
            when  !nmf
     2S     Responder's reverse: 4+ spades, 5+ hearts, game forcing
            shows S>=4, H>=5, points>=13

   after 1D (P) 1S (P) 1N (P)
     3H     Four hearts, five spades, game forcing
            shows H>=4, S>=5, points>=13
     2C     4+ clubs, 5+ spades, not forcing
            shows C>=4, S>=5, points<=12
            when  !nmf
     2H     4+ hearts, 5+ spades, not forcing
            shows H>=4, S>=5, points<=12

   after 1H (P) 1S (P) 1N (P)
     2C     4+ clubs, 5+ spades, not forcing
            shows C>=4, S>=5, points<=12
     2D     4+ diamonds, 5+ spades, not forcing
            shows D>=4, S>=5, points<=12

   after 1x (P) 1y (P) 2x (P)
     P      Weak: no game
            shows points<=10
     2y     Weak: 6+ {y}
            shows y>=6, points<=10
     3y     Invitational: 6+ {y}, 11-12
            shows y>=6, points=11..12
     3x     Raise: 2+ {x}, 10-12
            shows x>=2, points=10..12
     3x     Raise (BBA): 3+ {x}, 7-9, to compete
            shows x>=3, points=7..9
            when  style is bba, x is C | x is D
     2N     Invitational: 11-12
            shows points=11..12, x<=1, y<=5
     3N     Game: 13+
            shows points>=13, x<=2 | x is C | x is D

   after 1M (P) 1y (P) 2M (P)
     4M     Game: 2+ {M}, 13+
            shows M>=2, points>=13

   after 1x (P) 1y (P) 2y (P)
     P      Weak: no game
            shows tp(y)<=10
     3y     Invitational: 11-12
            shows tp(y)=11..12

   after 1x (P) 1M (P) 2M (P)
     4M     Game: 13+
            shows tp(M)>=13

   after 1C (P) 1D (P) 2D (P)
     3N     Game: 13+
            shows points>=13

   after 1C (P) 1D (P) 1H (P)
     1S     4+ spades
            shows S>=4, H<=3

   after 1x (P) 1y (P) 1z (P)
     1N     6-10, no fit
            shows points<=10, z<=3
     2x     Preference: 3+ {x}, weak
            shows x>=3, points<=10, z<=3
     2z     Raise: 4+ {z}, weak
            shows z>=4, points<=10
     3z     Invitational raise: 4+ {z}, 11-12
            shows z>=4, points=11..12
     2y     Weak: 6+ {y}
            shows y>=6, points<=10
     3y     Invitational: 6+ {y}, 11-12
            shows y>=6, points=11..12
     2N     Invitational: 11-12
            shows points=11..12, z<=3
     3N     Game: 13+
            shows points>=13, z<=3

   after 1x (P) 1y (P) 1M (P)
     4M     Game raise: 4+ {M}, 13+
            shows M>=4, points>=13

   after 1D (P) 1H (P) 1S (P)
     2C     5+ clubs, 8-10
            shows C>=5, points=8..10, S<=3
            when  !fsf

   after 1x (P) 1y (P) 2z (P)
     when z is not x, z is not y
     P      Weak: passes {z}
            shows points<=10, z>=4 | z>x
     2x     Preference: weak
            shows x>=2, points<=10, x>=z | (z<=3, x is H) | (z<=3, x is S)
     2y     Weak: 6+ {y}
            shows y>=6, points<=10
     3z     Invitational raise: 4+ {z}
            shows z>=4, points=11..12
     3x     Invitational: 3+ {x}
            shows x>=3, points=11..12
     2N     Invitational: 11-12
            shows points=11..12, z<=3
     3N     Game: 13+
            shows points>=13, z<=3 | z is C | z is D
     2N     Forced to bid: minimum, no fit
            shows points<=10
            when  we.forcing=round

   after 1x (P) 1y (P) 3x (P)
     P      Weak: no game
            shows points<=8
     3N     Game: 9+
            shows points>=9, x<=1 | x is C | x is D

   after 1M (P) 1y (P) 3M (P)
     4M     Game: 2+ {M}, 8+
            shows M>=2, points>=8

   after 1x (P) 1y (P) 3y (P)
     P      Weak: no game
            shows points<=8
     3N     Game: 8+
            shows points>=8
            when  y is not H, y is not S

   after 1x (P) 1M (P) 3M (P)
     4M     Game: 9+
            shows points>=9

   after 1x (P) 1y (P) 2N (P)
     P      Weak: no game
            shows points<=6
     3N     Game: 7+
            shows points>=7, y<=5 | y is C | y is D

   after 1x (P) 1M (P) 2N (P)
     4M     Game: 6+ {M}
            shows M>=6, points>=7

   after 1x (P) 1N (P) 2z (P)
     when z is not x
     P      Passes: {z} at least as long, or a four-card {z}
            shows z>=4 | z>x
     3m     Six or more {m}, short in both of opener's suits: to play
            shows m>=6, x<=1, z<=2
            when  m is not x, m is not z
     2x     Preference: 2+ {x}
            shows x>=2, x>=z | (z<=3, x is H) | (z<=3, x is S)
     3z     Raise: 4+ {z}, 9-10
            shows z>=4, points=9..10

   after 1x (P) 1N (P) 2x (P)
     P      No game
            shows hcp<=10
     3x     Raise: 3+ {x}, maximum for the 1NT response
            shows x>=3, points>=10
     3x     Raise: 2+ {x}, 8-10: invites game
            shows x>=2, hcp>=8
            when  x is H | x is S

   after 1x (P) 1N (P) 3x (P)
     P      No game
            shows points<=8
     3N     Game, no fit
            shows points>=9, x<=1 | x is C | x is D

   after 1M (P) 1N (P) 3M (P)
     4M     Game: 2+ {M}, 8+
            shows M>=2, points>=8

   after 1x (P) 1N (P) 2N (P)
     P      No game
            shows points<=6
     3N     Game: 7+
            shows points>=7

   after 1y (P) 2x (P) 2z (P)
     when x is not y
     2N     Invitational, no fit: 11-12
            shows points=11..12, y<=2 | y is C | y is D
     3N     Game, no fit
            shows points>=13, y<=2 | y is C | y is D
     3x     Invitational: 6+ {x}, 11-12
            shows x>=6, suit_points=11..12, y<=2 | y is C | y is D
     2y     Preference: 2+ {y}, nothing better to say
            shows y>=2, suit_points<=12
     P      Minimum for the two-over-one: no game
            shows suit_points<=12

   after 1M (P) 2x (P) 2z (P)
     when x is not M
     4M     Game with support
            shows tp(M)>=11, M>=3 | (M>=2, partner.M>=6)

   after 1y (P) 2x (P) 3x (P)
     when x is not y
     4x     Game in the fit
            shows suit_points>=11
            when  x is H | x is S
     3N     Game
            shows points>=12, y<=2 | y is C | y is D
            when  x is H | x is S | (x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     P      Minimum for the two-over-one
            shows suit_points<=12

   after 1y (P) 2x (P) 3x (P)
     when x is C | x is D, x is not y
     cheapest(C) Stopper in C, looking for 3NT
            when  x is not C, y is not C, cheapest_rank(C)<19, points>=12, stop(C), !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     cheapest(D) Stopper in D, looking for 3NT
            when  x is not D, y is not D, cheapest_rank(D)<19, points>=12, stop(D), !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     cheapest(H) Stopper in H, looking for 3NT
            when  x is not H, y is not H, cheapest_rank(H)<19, points>=12, stop(H), !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     cheapest(S) Stopper in S, looking for 3NT
            when  x is not S, y is not S, cheapest_rank(S)<19, points>=12, stop(S), !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     cheapest(y) No stopper to show below 3NT: over to you
            when  cheapest_rank(y)<19, points>=12, !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)
     5x     Game in the minor: a suit unstopped
            shows points>=12
            when  !(x is C | y is C | stop(C) | partner.cued(C) | partner.C.min>=4 | shown.C.min>=4, x is D | y is D | stop(D) | partner.cued(D) | partner.D.min>=4 | shown.D.min>=4, x is H | y is H | stop(H) | partner.cued(H) | partner.H.min>=4 | shown.H.min>=4, x is S | y is S | stop(S) | partner.cued(S) | partner.S.min>=4 | shown.S.min>=4)

   after 1M (P) 2x (P) 3x (P)
     when x is not M
     4M     Game with support
            shows tp(M)>=11, M>=3

   after 1y (P) 2x (P) 3z (P)
     when x is not y, z is not y, z is not x
     3N     Game, no fit
            shows points>=10, y<=2 | y is C | y is D

   after 1M (P) 2x (P) 3z (P)
     when x is not M, z is not M, z is not x
     4M     Game with support
            shows tp(M)>=11, M>=3

   after 1y (P) 2x (P) 2N (P)
     when x is not y
     3N     Game: the two-over-one was 11+
            shows points>=11
     P      Nothing: a minimum two-over-one

   after 1y (P) 2x (P) 3y (P)
     when x is not y
     3N     Game, no fit
            shows points>=11, y<=1 | y is C | y is D
     P      Nothing: a minimum two-over-one

   after 1M (P) 3M (P) 3N (P)
     4M     Prefers the major: four trumps
            shows M>=4

   after 1M (P) 2M (P) 3M (P)
     4M     Accepts: top of the raise
            shows tp(M)>=9
            when  style is not bba
     P      Declines
            shows tp(M)<=8
            when  style is not bba
     4M     Accepts (BBA): 10 HCP, or four trumps and a singleton
            shows hcp>=10 | (M>=4, shortest<=1)
            when  style is bba
     P      Declines (BBA)
            when  style is bba

   after 1M (P) 2x (P) 3M (P)
     when x is not M
     4M     Game
            shows points>=11

   after 1x (P) 1N (P) 2y (P)
     when y is not x, we.forcing=round
     3N     Game: a maximum for the 1NT response
            shows hcp>=9
     3{y}   Raise: four or more {y}
            shows y>=4
     3{x}   Preference to {x}
            shows x>=2

   after 1x (*) X (*) 1z (*) | 1x (*) X (*) 2z (*) | 1x (*) X (*) 3z (*)
     when they.bid
     P      Minimum for the double: nothing more to say
            shows hcp+length_points<=10
     cheapest(z) Raise: four or more {z}, 11-12
            shows z>=4, hcp+length_points=11..12
            when  partner.z>=3
     4{z}   Game in {z}: 13+ with the fit
            shows z>=4, hcp+length_points>=13
            when  partner.z>=3, z is H | z is S
     4{z}   Game opposite opener's jump: 8+ with the fit
            shows z>=4, hcp+length_points>=8
            when  partner.z>=3, z is H | z is S, partner.jumped
     cheapest(N) Invitational: 11-12 balanced
            shows balanced, hcp+length_points=11..12
     jump(N) Game: 13+ balanced
            shows balanced, hcp+length_points>=13
     P      Nothing more to say

   after 1x (1y) X (P) 1z (P) | 1x (1y) X (P) 2z (P) | 1x (1y) X (P) 3z (P) | 1x (2y) X (P) 2z (P) | 1x (2y) X (P) 3z (P)
     when y is not x, y is not z
     3N     Game: 13+, a stopper in {y}
            shows hcp+length_points>=13, stop(y)
            when  partner.z<=3 | z is C | z is D
     cheapest(y) Cue bid: 13+, no stopper in {y}, forcing to game  [alert]  [artificial]
            shows hcp+length_points>=13

   after 1x (X) XX (1y) P (P) | 1x (X) XX (2y) P (P) | 1x (X) XX (3y) P (P)
     when y is not x
     X      Penalty: four good {y} behind the bidder
            shows y>=4
            when  quality(y)>=good | top5(y)>=3
     cheapest(x) Back to partner's suit: three or more, 10-11
            shows x>=3, hcp<=11
     3N     Game: 12+ with a stopper in {y}
            shows hcp>=12, stop(y)
     4{x}   Game: 12+ with three-card support
            shows x>=3, hcp>=12
            when  x is H | x is S
     cheapest(y) Cue bid: 12+, no stopper, forcing to game  [alert]  [artificial]
            shows hcp>=12
            when  !stop(y), cheapest_rank(y)<=18
     cheapest(S) Five or more spades
            shows S>=5
            when  x is not S, y is not S
     cheapest(H) Five or more hearts
            shows H>=5, S<=4
            when  x is not H, y is not H
     P      Nothing to say over their escape

   after 1x (1y) P (P) X (P) | 1x (2y) P (P) X (P) | 1x (3y) P (P) X (P)
     when y is not x
     P      Passes the reopening double: four or more {y}
            shows y>=4
     cheapest(S) Four or more spades for the reopening double
            shows S>=4, S>=H, S>=D, S>=C
            when  x is not S, y is not S
     cheapest(H) Four or more hearts for the reopening double
            shows H>=4, H>S, H>=D, H>=C
            when  x is not H, y is not H
     cheapest(D) Four or more diamonds for the reopening double
            shows D>=4, D>S, D>H, D>=C
            when  x is not D, y is not D
     cheapest(C) Four or more clubs for the reopening double
            shows C>=4, C>S, C>H, C>D
            when  x is not C, y is not C
     cheapest(x) Back to partner's suit
            shows x>=3
     cheapest(N) Balanced with a stopper in {y}
            shows balanced
            when  stop(y)
     P      Nothing better than defending

   after 1x (*) P (*) P (P)
     when they.bid
     P      Partner had no reopening bid either: let them play it

   after 1x (*) 1y (*) 1z (*)
     when they.bid, y is not x, z is not x, z is not y
     cheapest(N) 6-10, no fit
            shows points<=10, z<=3
     cheapest(x) Preference: three or more {x}, weak
            shows x>=3, points<=10, z<=3
     cheapest(z) Raise: four or more {z}, weak
            shows z>=4, points<=10
     jump(z) Invitational raise: four or more {z}, 11-12
            shows z>=4, points=11..12
     cheapest(y) Weak: six or more {y}
            shows y>=6, points<=10
     jump(y) Invitational: six or more {y}, 11-12
            shows y>=6, points=11..12
     jump(N) Game: 13+
            shows points>=13, z<=3
     4{z}   Game raise: four or more {z}, 13+
            shows z>=4, points>=13
            when  z is H | z is S
     P      Nothing to say

   after 1x (*) 1y (*) 2z (*)
     when they.bid, y is not x, z is not x, z is not y
     cheapest(x) Preference: two or more {x}
            shows x>=2, points<=12
     cheapest(z) Raise: four or more {z}
            shows z>=4, points>=10
     cheapest(y) Weak: six or more {y}
            shows y>=6, points<=10
     cheapest(N) No fit, forced to bid
            shows points<=12
     jump(N) Game: 13+
            shows points>=13, z<=3
     P      Weak, and partner may pass
            shows points<=10
     P      Nothing to say

   after 1x (*) 1z (*) P (P) | 1x (*) 2z (*) P (P)
     when they.bid, z is not x
     cheapest(z) Six or more {z}: worth one more
            shows z>=6, points>=8
     cheapest(x) Preference: three or more {x}, worth one more
            shows x>=3, points>=10
            when  partner.x>=5
     P      Minimum: they have bought it

   after 1x (*) X (*) 1N (*) | 1x (*) X (*) 2N (*)
     when they.bid
     P      Minimum for the double: no game
            shows points<=10
     cheapest(S) Weak: six or more spades
            shows S>=6, points<=10
     cheapest(H) Weak: six or more hearts
            shows H>=6, S<=5, points<=10
     cheapest(N) Invitational: 11-12
            shows points=11..12
     jump(N) Game: 13+
            shows points>=13
     P      Nothing more to say

   after 1x (*) X (*) P (P)
     when they.bid
     cheapest(S) Five or more spades and 11+: worth competing
            shows S>=5, points>=11
     cheapest(H) Five or more hearts and 11+: worth competing
            shows H>=5, S<=4, points>=11
     cheapest(x) Preference to partner's suit with 11-12
            shows x>=3, points=11..12
     P      Partner had nothing to say either

   after 1x (1y) X (1y) P (P) | 1x (1y) X (2y) P (P) | 1x (1y) X (3y) P (P) | 1x (2y) X (3y) P (P)
     when y is not x
     3N     Game: 13+ with a stopper in {y}
            shows points>=13, stop(y)
     4{x}   Game in partner's major: 13+ with three
            shows x>=3, points>=13
            when  x is H | x is S
     5{x}   Game in partner's minor: 13+ with three
            shows x>=3, points>=13
            when  x is C | x is D

   after 1C (P) 1S (P) 1N (P) 3H (P) | 1D (P) 1S (P) 1N (P) 3H (P)
     4H     Four hearts
            shows H>=4
     4S     Three spades
            shows S=3, H<=3
     3N     Neither fit
            shows S<=2, H<=3

   after (any auction)
     when asked stoppers, trump is C | trump is D
     3N     Every suit stopped: 3NT
            when  trump is C | stop(C) | partner.cued(C) | me.cued(C) | partner.C.min>=4 | shown.C.min>=4, trump is D | stop(D) | partner.cued(D) | me.cued(D) | partner.D.min>=4 | shown.D.min>=4, trump is H | stop(H) | partner.cued(H) | me.cued(H) | partner.H.min>=4 | shown.H.min>=4, trump is S | stop(S) | partner.cued(S) | me.cued(S) | partner.S.min>=4 | shown.S.min>=4
     cheapest(C) Stopper in C, looking for 3NT
            when  trump is not C, cheapest_rank(C)<19, stop(C), !partner.cued(C), !me.cued(C), !partner.C.min>=4, !shown.C.min>=4
     cheapest(D) Stopper in D, looking for 3NT
            when  trump is not D, cheapest_rank(D)<19, stop(D), !partner.cued(D), !me.cued(D), !partner.D.min>=4, !shown.D.min>=4
     cheapest(H) Stopper in H, looking for 3NT
            when  trump is not H, cheapest_rank(H)<19, stop(H), !partner.cued(H), !me.cued(H), !partner.H.min>=4, !shown.H.min>=4
     cheapest(S) Stopper in S, looking for 3NT
            when  trump is not S, cheapest_rank(S)<19, stop(S), !partner.cued(S), !me.cued(S), !partner.S.min>=4, !shown.S.min>=4
     5{trump} A suit unstopped: game in the minor

   after 1m (P) 2m (P) 3m (P)
     3N     Accepts: the top of the raise
            shows hcp>=9
     P      Declines: 6-8
            shows hcp<=8

   after 1x (1y) P (P) 1N (P) | 1x (2y) P (P) 2N (P)
     when y is not x
     3N     Game opposite 18-19: 7+
            shows hcp>=7
     P      No game
            shows hcp<=6

   after 1x (1z) 1y (P) 2x (P)
     when z is not x, z is not y, y is not x
     3x     Invitational: 3+ {x}, 11-12
            shows x>=3, points=11..12
     4x     Game: 3+ {x}, 13+
            shows x>=3, points>=13
            when  x is H | x is S
     3y     Invitational: 6+ {y}, 11-12
            shows y>=6, points=11..12
     2N     Invitational: 11-12, {z} stopped
            shows points=11..12, stop(z), x<=2
     3N     Game: 13+, {z} stopped
            shows points>=13, stop(z), x<=2 | x is C | x is D
     cheapest(z) Cue bid: 13+, no stopper in {z}, forcing to game  [alert]  [artificial]
            shows points>=13
            when  cheapest_rank(z)<=18

   after 1x (1z) 1y (P) 2y (P)
     when z is not x, z is not y, y is not x
     3y     Invitational: 11-12 with the fit
            shows tp(y)=11..12
     4y     Game: 13+ with the fit
            shows tp(y)>=13
            when  y is H | y is S
     3N     Game: 13+, {z} stopped
            shows points>=13, stop(z)
            when  y is C | y is D

   after 1x (1z) 1y (P) 1N (P)
     when z is not x, z is not y, y is not x
     2N     Invitational: 11-12
            shows points=11..12, y<=5
     3N     Game: 13+
            shows points>=13, y<=5 | y is C | y is D
     3y     Invitational: 6+ {y}, 11-12
            shows y>=6, points=11..12
     4y     Game: 6+ {y}, 13+
            shows y>=6, points>=13
            when  y is H | y is S

   after 1x (1y) 2z (P) 2M (P) | 1x (1y) 2z (P) 3M (P) | 1x (2y) 2z (P) 2M (P) | 1x (2y) 2z (P) 3M (P) | 1x (2y) 3z (P) 3M (P)
     when y is not x, z is not x, z is not y, M is not x, M is not y, M is not z
     4M     Game: four {M}, 13+
            shows M>=4, points>=13
     cheapest(M) Raise: four {M}, 11-12
            shows M>=4, points=11..12
     3N     Game: 13+, {y} stopped
            shows points>=13, stop(y), M<=3
     cheapest(x) Preference: 11-12
            shows x>=3, points=11..12, M<=3
     cheapest(y) Cue bid: 13+, no stopper, forcing to game  [alert]  [artificial]
            shows points>=13
            when  cheapest_rank(y)<=18
     P      Minimum: no game
            shows points<=10
     cheapest(x) Preference: two or more {x}
            shows x>=2

   after 1x (1y) 2z (P) 2x (P) | 1x (1y) 2z (P) 3x (P) | 1x (2y) 2z (P) 3x (P) | 1x (2y) 3z (P) 3x (P)
     when y is not x, z is not x, z is not y
     4x     Game: 3+ {x}, 13+
            shows x>=3, points>=13
            when  x is H | x is S
     3N     Game: 13+, {y} stopped
            shows points>=13, stop(y)
     cheapest(x) Invitational raise: 3+ {x}, 11-12
            shows x>=3, points=11..12
     cheapest(y) Cue bid: 13+, no stopper, forcing to game  [alert]  [artificial]
            shows points>=13
            when  cheapest_rank(y)<=18

   after 1x (1y) 2z (P) 3z (P) | 1x (2y) 2z (P) 3z (P)
     when y is not x, z is not x, z is not y
     4z     Game in the fit: 13+
            shows points>=13
            when  z is H | z is S
     3N     Game: 13+, {y} stopped
            shows points>=13, stop(y)
            when  z is C | z is D
     cheapest(y) Cue bid: 13+, no stopper, forcing to game  [alert]  [artificial]
            shows points>=13
            when  z is C | z is D, cheapest_rank(y)<=18

   after 1x (2y) 3z (P) 4z (P)
     when y is not x, z is not x, z is not y, z is C | z is D
     5{z}   Game in the minor: 13+
            shows points>=13
     P      No game
            shows points<=12

   after 1x (X) XX (1y) 2x (P) | 1x (X) XX (2y) 2x (P) | 1x (X) XX (1y) 3x (P) | 1x (X) XX (2y) 3x (P)
     when y is not x
     4{x}   Game: 12+ with a doubleton or better
            shows x>=2, hcp>=12
            when  x is H | x is S
     3N     Game: 12+ with a stopper in {y}
            shows hcp>=12, stop(y)
            when  x is C | x is D | x<=1
     5{x}   Game in the minor: 13+
            shows x>=2, hcp>=13
            when  x is C | x is D
     3{x}   Invitational: 10-11 with a doubleton
            shows x>=2, hcp=10..11
            when  partner.last=2{x}
     P      Minimum for the redouble: no game

   after (any auction)
     when partner.last=1N | partner.last=2N, me.has_bid | style is not bba, partner.balanced, !they.bid | lho.last=P, we.trump is none, !asked
     3N     Game: 25+ between us, partner at his minimum
            shows points+partner.points.min>=25
     2N     Invitation: game if partner is at the top
            shows points+partner.points.max>=25
            when  partner.last=1N
     P      No game: under 25 between us
            shows points+partner.points.max<=26

   after 1x (X) 1z (1y) X (P)
     when z is not x, y is not x, y is not z, !asked support
     cheapest(N) A stopper in {y}, nothing more to show
            shows stop(y), z<=5
     cheapest(z) Five or more {z}
            shows z>=5
     cheapest(x) Three or more of partner's {x}
            shows x>=3
     cheapest(z) Nothing else to say: {z} again

== responses: Responses to one-level suit openings
   file: conventions/base/responses.bid
   needs: base

   after 1C (P)
     when over_1c is up_the_line
     1D     4+ diamonds, 6+ HCP
            shows D>=4, hcp>=6, D>=H, D>H | D=4, D>=S, D>S | D=4
     1H     4+ hearts, 6+ HCP
            shows H>=4, hcp>=6, H>=D, H>D | H>=5, H>=S, H>S | H=4
     1S     4+ spades, 6+ HCP
            shows S>=4, hcp>=6, S>=D, S>D | S>=5, S>H | S>=5, S>=H

   after 1C (P)
     when over_1c is walsh
     1D     4+ diamonds, 6+ HCP: no four-card major, or game forcing (12+ HCP)
            shows D>=4, hcp>=6, (H<=3, S<=3) | hcp>=12, D>=H, D>=S
     1H     4+ hearts, 6+ HCP
            shows H>=4, hcp>=6, H>=S, H>S | H=4, hcp<=11 | H>D
     1S     4+ spades, 6+ HCP
            shows S>=4, hcp>=6, S>H | S>=5, S>=H, hcp<=11 | S>D

   after 1C (P)
     1N     6-10 HCP, balanced, no 4-card major or diamonds
            shows hcp=6..10, H<=3, S<=3, D<=3
            when  !inverted | C<=4
     2D     Strong jump shift: 15+, 5+ diamonds
            shows D>=5, hcp>=15
            when  strong_js, !passed_hand

   after 1D (P)
     1H     4+ hearts, 6+ HCP
            shows H>=4, hcp>=6, H>=S, H>S | H=4
            when  hcp<=10 | H>=C
     1S     4+ spades, 6+ HCP
            shows S>=4, hcp>=6, S>H | S>=5, S>=H
            when  hcp<=10 | S>=C
     1N     6-10 HCP, no 4-card major
            shows hcp=6..10, H<=3, S<=3
            when  !inverted | D<=4
     2C     11+ points, 4+ clubs
            shows C>=4, points>=11 | C>=6, suit_points>=10, H<=3 | C>H, S<=3 | C>S
     3C     Invitational jump shift: 10-12, 6+ clubs
            shows C>=6, points=10..12, H<=3, S<=3
            when  inv_js

   after 1m (P)
     2m     Raise: 6-9, 5+ {m}, no 4-card major
            shows m>=5, hcp>=6, points<=9, H<=3, S<=3
            when  !inverted
     3m     Limit raise: 10-12 HCP, 5+ {m}, no 4-card major
            shows m>=5, hcp=10..12, H<=3, S<=3
            when  !inverted
     3N     Game values, no 4-card major
            shows hcp>=13, H<=3, S<=3
            when  !inverted
     2N     11-12, balanced, no 4-card major
            shows balanced, points=11..12, H<=3, S<=3
            when  nt2 is invitational
     3N     13-15, balanced, no 4-card major
            shows balanced, points=13..15, H<=3, S<=3
            when  nt2 is invitational
     2N     13-15, balanced, no 4-card major: game forcing
            shows balanced, points=13..15, H<=3, S<=3
            when  nt2 is game_forcing
     3N     16-17, balanced, no 4-card major
            shows balanced, points=16..17, H<=3, S<=3
            when  nt2 is game_forcing
     2H     Strong jump shift: 15+, 5+ hearts
            shows H>=5, hcp>=15
            when  strong_js, !passed_hand
     2S     Strong jump shift: 15+, 5+ spades
            shows S>=5, hcp>=15
            when  strong_js, !passed_hand

   after 1D (P)
     when nt2 is game_forcing
     2C     11-12, balanced, no 4-card major: 2NT next
            shows balanced, points=11..12, C>=3, H<=3, S<=3

   after 1C (P)
     when nt2 is game_forcing
     1D     11-12, balanced, no 4-card major: 2NT next
            shows balanced, points=11..12, D>=3, H<=3, S<=3

   after 1H (P)
     1S     4+ spades, 6+ HCP
            shows S>=4, hcp>=6
            when  H<=2 | (style is not bba, (H=3, tp(H)>=11) | tp(H)>=13 | !limit_raise) | (style is bba, H=3, hcp>=11 | S>=6 | (hcp>=10, S>=5 | shortest<=2)), hcp<=10 | (S>=C, S>=D) | (hcp<=12, C<=5, D<=5)
     1N     6-10 HCP, no heart fit, no 4 spades
            shows hcp=6..10, H<=2, S<=3
     2S     Strong jump shift: 15+, 5+ spades
            shows S>=5, hcp>=15
            when  strong_js, !passed_hand
     2C     11+ points, 4+ clubs
            shows C>=4, points>=11 | C>=6 | (H>=3, tp(H)>=11), suit_points>=10, C>=D, S<=3 | (C>S, hcp>=13 | C>=6)
            when  !passed_hand | (!drury, !drury_rev), H<=2 | (style is not bba, H=3 | tp(H)>=13) | (style is bba, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, H>=4))
     2D     11+ points, 4+ diamonds
            shows D>=4, points>=11 | D>=6 | (H>=3, tp(H)>=11), suit_points>=10, D>C, S<=3 | (D>S, hcp>=13 | D>=6)
            when  H<=2 | (style is not bba, H=3 | tp(H)>=13) | (style is bba, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, H>=4))
     3H     Limit raise: 11-12 support points, 3+ hearts
            shows H>=3, tp(H)=11..12 | (H>=4, tp(H)=10, shortest<=2), hcp<=12
            when  !passed_hand | (!drury, !drury_rev), limit_raise, H>=4 | S<=3, style is not bba
     3C     Invitational jump shift: 10-12, 6+ clubs
            shows C>=6, points=10..12, H<=2
            when  inv_js
     3D     Invitational jump shift: 10-12, 6+ diamonds
            shows D>=6, points=10..12, H<=2
            when  inv_js

   after 1S (P)
     1N     6-10 HCP, no spade fit
            shows hcp=6..10, S<=2
     2C     11+ points, 4+ clubs
            shows C>=4, points>=11 | C>=6 | (S>=3, tp(S)>=11), suit_points>=10, C>=D, C>=H
            when  !passed_hand | (!drury, !drury_rev), S<=2 | (style is not bba, S=3 | tp(S)>=13) | (style is bba, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, S>=4))
     2D     11+ points, 4+ diamonds
            shows D>=4, points>=11 | D>=6 | (S>=3, tp(S)>=11), suit_points>=10, D>C, D>=H
            when  S<=2 | (style is not bba, S=3 | tp(S)>=13) | (style is bba, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, S>=4))
     2H     11+ points, 5+ hearts
            shows H>=5, points>=11 | H>=6 | (S>=3, tp(S)>=11), suit_points>=10
            when  S<=2 | (style is not bba, S=3 | tp(S)>=13) | (style is bba, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, S>=4))
     3S     Limit raise: 11-12 support points, 3+ spades
            shows S>=3, tp(S)=11..12 | (S>=4, tp(S)=10, shortest<=2), hcp<=12
            when  !passed_hand | (!drury, !drury_rev), limit_raise, style is not bba
     2H     10+ HCP, 5+ hearts (BBA)
            shows H>=5, hcp>=10, S<=2 | hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, S>=4)
            when  style is bba
     3C     Invitational jump shift: 10-12, 6+ clubs
            shows C>=6, points=10..12, S<=2
            when  inv_js
     3D     Invitational jump shift: 10-12, 6+ diamonds
            shows D>=6, points=10..12, S<=2
            when  inv_js
     3H     Invitational jump shift: 10-12, 6+ hearts
            shows H>=6, points=10..12, S<=2
            when  inv_js

   after 1M (P)
     2M     Raise: 6-10 support points, 3+ {M}
            shows M>=3, tp(M)=6..10, hcp>=6, M=3 | tp(M)<=9 | shortest>=3
            when  style is not bba
     4M     Preemptive raise: 5+ {M}, weak
            shows M>=5, hcp=5..9
            when  style is not bba
     2C     Game values with a fit: a three-card minor to start
            shows M>=3, tp(M)>=13, C>=3
            when  !passed_hand | (!drury, !drury_rev), style is not bba
     2D     Game values with a fit: a three-card minor to start
            shows M>=3, tp(M)>=13, D>=3, C<=2
            when  style is not bba
     2M     Raise (BBA): 3+ {M}, 6-10 HCP flat or 6-8 with shortness
            shows M>=3, hcp>=5, tp(M)<=11, (M=3, hcp>=6, hcp<=10, hcp<=8 | shortest>=3) | (M>=4, hcp<=8, tp(M)+M<=14)
            when  style is bba
     3M     Limit raise (BBA): three {M} and 11-12 flat or 9-11 with shortness, or four and 9-10
            shows M>=3, (M=3, hcp=11..12, shortest>=3) | (M=3, hcp=9..11, shortest<=2, tp(M)<=13) | (M>=4, hcp=9..10, shortest>=2, shortest>=3 | controls<=3, shortest>=3 | longest<=4), M is S | S<=3 | hcp<=9
            when  !passed_hand | (!drury, !drury_rev), limit_raise, style is bba
     4M     Raise to game (BBA): four {M} and shortness, not the values to force
            shows M>=4, (shortest<=1, hcp<=10, tp(M)+M>=15) | (shortest=2, hcp=9..10, controls>=4 | longest>=5)
            when  style is bba
     2C     Game values with a fit: a three-card minor to start
            shows M>=3, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, M>=4), C>=3
            when  !passed_hand | (!drury, !drury_rev), style is bba
     2D     Game values with a fit: a three-card minor to start
            shows M>=3, hcp>=13 | (hcp>=12, shortest<=2) | (hcp>=11, M>=4), D>=3, C<=2
            when  style is bba
     4M     Game in the fit: 13+ support points
            shows M>=3, tp(M)>=13
     2N     11-12, balanced, no fit
            shows balanced, points=11..12, M<=2
     3N     13-15, balanced
            shows balanced, points=13..15, M<=3

   after 1x (P)
     P      Fewer than 6 HCP
            shows hcp<=5

== strong-openings: 2♣ and 2NT openings
   file: conventions/base/strong-openings.bid
   needs: base

   after (any auction)
     when opening
     2N     {two_nt_min}-{two_nt_max} HCP, balanced
            shows hcp=two_nt_min..two_nt_max, balanced
     3N     {three_nt_min}-{three_nt_max} HCP, balanced
            shows hcp=three_nt_min..three_nt_max, balanced
            when  !gambling
     2C     Strong, artificial: 22+ HCP  [alert]  [artificial]
            shows hcp>=22, !balanced | hcp<=25 | hcp>=28
            when  two_c is strong | two_c is very_strong
     2C     Strong: nine tricks with a major  [alert]  [artificial]
            shows hcp>=17, losers<=4, hcp+length_points>=23, (H>=6, quality(H)>=good) | (S>=6, quality(S)>=good) | (H>=5, S>=5)
            when  two_c is strong | two_c is very_strong
     2C     Strong: ten tricks with a long suit  [alert]  [artificial]
            shows hcp>=17, losers<=3, hcp+length_points>=23, (C>=6, quality(C)>=good) | (D>=6, quality(D)>=good) | (H>=6, quality(H)>=good) | (S>=6, quality(S)>=good) | shape 5-5-x-x
            when  two_c is strong | two_c is very_strong

   after 2C (P)
     2D     Waiting  [artificial]
            when  two_d_resp is waiting | two_d_resp is negative
     2H     Positive: five or more hearts, 8+
            shows H>=5, hcp>=8
            when  !bust_2h, (H>=6, top5(H)>=3) | quality(H)>=good
     2S     Positive: five or more spades, 8+
            shows S>=5, hcp>=8
            when  (S>=6, top5(S)>=3) | quality(S)>=good
     3C     Positive: five or more clubs, 8+
            shows C>=5, hcp>=8
            when  (C>=6, top5(C)>=3) | quality(C)>=good
     3D     Positive: five or more diamonds, 8+
            shows D>=5, hcp>=8
            when  (D>=6, top5(D)>=3) | quality(D)>=good
     2N     Positive: balanced, 8+
            shows balanced, hcp>=8
     2H     Bust: fewer than 3 HCP  [artificial]
            shows hcp<=2
            when  bust_2h

   after 2C (P) 2D (P)
     2N     22-23 HCP, balanced
            shows hcp=22..23, balanced
     3N     24-25 HCP, balanced
            shows hcp=24..25, balanced
     4N     28+ HCP, balanced
            shows hcp>=28, balanced
     2H     5+ hearts
            shows H>=5
     2S     5+ spades
            shows S>=5
     3C     5+ clubs
            shows C>=5
     3D     5+ diamonds
            shows D>=5

   after 2C (P) 2N (P) 3S (P) | 2C (P) 3C (P) 3S (P) | 2C (P) 3D (P) 3S (P)
     4S     Support for spades: slam values opposite 2C
            shows S>=3

   after 2C (P) 2N (P) 3H (P) | 2C (P) 3C (P) 3H (P) | 2C (P) 3D (P) 3H (P)
     4H     Support for hearts: slam values opposite 2C
            shows H>=3

   after 2C (P) 2y (P) | 2C (P) 3y (P)
     when y is not D | partner.D>=5
     cheapest(y) Raise: three or more {y}
            shows y>=3
     cheapest(S) Five or more spades
            shows S>=5
            when  y is not S
     cheapest(H) Five or more hearts
            shows H>=5
            when  y is not H
     cheapest(D) Five or more diamonds
            shows D>=5
            when  y is not D
     cheapest(C) Five or more clubs
            shows C>=5
            when  y is not C
     cheapest(N) Balanced, no fit for {y}
            shows balanced

   after 2C (P) 2N (P)
     3S     Five or more spades
            shows S>=5
     3H     Five or more hearts
            shows H>=5
     3D     Five or more diamonds
            shows D>=5
     3C     Five or more clubs
            shows C>=5
     3N     Balanced, no suit to show
            shows balanced
     6N     Slam: the values are there
            shows hcp>=25, balanced

   after 2C (P) 2D (P) 2H (P)
     3C     Second negative: fewer than 3 HCP  [artificial]
            shows hcp<=2

   after 2C (P) 2D (P) 2S (P)
     3C     Second negative: fewer than 3 HCP  [artificial]
            shows hcp<=2

   after 2C (P) 2D (P) 3C (P)
     3D     Second negative: fewer than 3 HCP  [artificial]
            shows hcp<=2

== weak-two-responses: Responses to a weak two
   file: conventions/base/weak-two-responses.bid
   needs: preempts

   after 2x (P)
     when x is not N, x is not C | two_c is natural, style is standard
     2N     Asks: how good is the weak two?  [alert]  [artificial]
            shows hcp>=15
     3x     Preemptive raise: four-card support
            shows x>=4, hcp<=14
     4x     Game in the fit
            shows x>=4, hcp>=14
            when  x is H | x is S
     P      No interest
            shows hcp<=14

   after 2x (P)
     when x is not N, x is not C | two_c is natural, style is not standard
     2N     Asks: how good is the weak two?  [alert]  [artificial]
            shows hcp>=13
            when  hcp>=20 | (x>=2, hcp>=15) | (x<=1, hcp>=18) | (x is H | x is S, x=2, hcp>=14, vul | !they.vul) | (x is H | x is S, x>=3, vul) | (x is H | x is S, x>=4, !they.vul)
     3x     Preemptive raise: four-card support, up to 11
            shows x>=4, hcp<=11, hcp>=5 | shortest<=1
     3x     Preemptive raise: four-card support, weak (love all)
            shows x>=4, hcp<=4
            when  !vul, !they.vul
     4x     Preemptive game raise: four trumps and a singleton
            shows x>=4, shortest<=1, hcp<=9
            when  !vul
     4x     Game in the fit
            shows x>=3, hcp=15..19
            when  x is H | x is S, vul | (!they.vul, hcp>=16 | x>=4) | hcp>=18
     4x     Game with five-card support
            shows x>=5, hcp=13..19
            when  x is H | x is S
     3N     To play: 16+, help in diamonds, the side suits stopped
            shows hcp>=16, x>=2, stop(S), stop(H), stop(C), H<=5, S<=5
            when  x is D
     5x     Game in diamonds: three-card support, 18-20
            shows x>=3, hcp=18..20
            when  x is D
     2H     Natural and forcing: six hearts from 13, five from 14
            shows H>=5, hcp>=13
            when  x is D, H>=6 | hcp=14
     2S     Natural and forcing: six spades from 13, five from 14
            shows S>=5, hcp>=13
            when  x is D, S>=6 | hcp=14
     2S     Natural and forcing: five spades, 13+, at most one heart
            shows S>=5, hcp>=13, H<=1
            when  x is H
     P      No interest
            shows hcp<=19

   after 2x (P) 2y (P)
     when x is not C | two_c is natural, style is not standard
     4y     Three-card support: game (BBA, any strength)
            shows y>=3
            when  y is H | y is S
     3y     Three-card support
            shows y>=3
     3x     No fit: rebid the suit
            shows y<=2

   after 2x (P) 2y (P) 3x (P)
     when x is not C | two_c is natural, style is not standard, y is H | y is S
     4y     Seven-card suit: game facing a doubleton
            shows y>=7
     4y     Six-card suit, four top honours: game
            shows y>=6, top5(y)>=4, hcp>=16
     3y     Six-card suit, 19+: forcing, asks for a doubleton
            shows y>=6, hcp>=19
     4x     Game in opener's major: 20+, no fit for mine
            shows hcp>=20
            when  x is H | x is S
     3N     Game in notrump: 20+, no fit
            shows hcp>=20
            when  x is D
     P      No game facing a minimum weak two
            shows hcp<=19

   after 2x (P) 2y (P) 3x (P) 3y (P)
     when x is not C | two_c is natural, style is not standard, y is H | y is S
     4y     A doubleton: game in partner's suit
            shows y>=2
     3N     A singleton or void: 3NT
            shows y<=1

   after (any auction)
     when asked weak_two(t), ask2nt is feature, style is not bba
     3N     Solid suit: AKQ
            shows has(A,t), has(K,t), has(Q,t)
     3C     Feature: the club ace or king, maximum
            shows has(A,C) | has(K,C), hcp>=8
            when  t is not C
     3D     Feature: the diamond ace or king, maximum
            shows has(A,D) | has(K,D), hcp>=8
            when  t is not D
     3H     Feature: the heart ace or king, maximum
            shows has(A,H) | has(K,H), hcp>=8
            when  t is not H
     3S     Feature: the spade ace or king, maximum
            shows has(A,S) | has(K,S), hcp>=8
            when  t is not S
     3C     Maximum: the club queen, no side ace or king
            shows has(Q,C), hcp>=8
            when  t is not C
     3D     Maximum: the diamond queen, no side ace or king
            shows has(Q,D), hcp>=8
            when  t is not D
     3H     Maximum: the heart queen, no side ace or king
            shows has(Q,H), hcp>=8
            when  t is not H
     3S     Maximum: the spade queen, no side ace or king
            shows has(Q,S), hcp>=8
            when  t is not S
     3C     Maximum: AK of the suit and the club jack
            shows has(A,t), has(K,t), has(J,C), hcp>=8
            when  t is not C
     3D     Maximum: AK of the suit and the diamond jack
            shows has(A,t), has(K,t), has(J,D), hcp>=8
            when  t is not D
     3H     Maximum: AK of the suit and the heart jack
            shows has(A,t), has(K,t), has(J,H), hcp>=8
            when  t is not H
     3S     Maximum: AK of the suit and the spade jack
            shows has(A,t), has(K,t), has(J,S), hcp>=8
            when  t is not S
     3{t}   Minimum, or nothing outside the suit
            shows hcp<=10

   after (any auction)
     when asked weak_two(t), ask2nt is feature, style is bba
     3C     Maximum, 8-10, with a club honour (A, Kx, Qxx)
            shows hcp>=8, has(A,C) | (has(K,C), C>=2) | (has(Q,C), C>=3)
            when  t is not C
     3D     Maximum, 8-10, with a diamond honour (A, Kx, Qxx)
            shows hcp>=8, has(A,D) | (has(K,D), D>=2) | (has(Q,D), D>=3)
            when  t is not D
     3H     Maximum, 8-10, with a heart honour (A, Kx, Qxx)
            shows hcp>=8, has(A,H) | (has(K,H), H>=2) | (has(Q,H), H>=3)
            when  t is not H
     3S     Maximum, 8-10, with a spade honour (A, Kx, Qxx)
            shows hcp>=8, has(A,S) | (has(K,S), S>=2) | (has(Q,S), S>=3)
            when  t is not S
     3N     Maximum, 8-10, no side honour to show
            shows hcp>=8
     3{t}   Minimum, 5-7
            shows hcp<=7

   after (any auction)
     when asked weak_two(t), ask2nt is ogust
     3C     Ogust: minimum, poor suit  [artificial]
            shows hcp<=6, quality(t)<=1
     3D     Ogust: minimum, good suit  [artificial]
            shows hcp<=6, quality(t)>=2
     3H     Ogust: maximum, poor suit  [artificial]
            shows hcp>=7, quality(t)<=1
     3S     Ogust: maximum, good suit  [artificial]
            shows hcp>=7, quality(t)>=2
     3N     Ogust: the top three honours
            shows quality(t)=3

   after 2x (P) 2N (P) 3N (P) 4x (P)
     when x is C | x is D, style is bba
     5x     A shortness: game in the minor
            shows shortest<=1
     P      No shortness: play four
            shows shortest>=2

   after (any auction)
     when answered weak_two(t), style is bba, !partner.last=3{t}
     4{t}   Game: partner has a maximum
            shows hcp>=13
            when  t is H | t is S
     3N     Game: partner has a maximum
            shows hcp>=13
            when  t is C | t is D, !partner.last=3N
     P      Partner's 3NT is game
            shows hcp>=17
            when  t is C | t is D, partner.last=3N
     4{t}   Doubt about 3NT: 15-16
            shows hcp<=16
            when  t is C | t is D, partner.last=3N

   after (any auction)
     when answered weak_two(t)
     4N     Keycard ask in {t}  [artificial]
            shows t>=2, hcp+partner.hcp.min>=33
            when  k1430 | k0314
     4N     Blackwood: aces, {t} agreed  [artificial]
            shows t>=2, hcp+partner.hcp.min>=33
            when  aces, !k1430, !k0314
     4{t}   Game in the weak two suit
            shows hcp>=17
            when  t is H | t is S
     3N     Game in notrump
            shows hcp>=17
            when  t is C | t is D
     4{t}   Game: partner showed a maximum
            shows hcp+partner.hcp.min>=21
            when  t is H | t is S
     3N     Game in notrump: partner showed a maximum
            shows hcp+partner.hcp.min>=21
            when  t is C | t is D
     P      Sign off: the answer is our suit
            when  partner.last=3{t}
     4{t}   Corrects 3NT to our suit
            shows hcp<=16
            when  partner.last=3N, t is H | t is S
     3{t}   Sign off in {t}
            shows hcp<=16
     3N     To play: the answer was higher than our suit
            shows hcp<=16
     4{t}   Sign off in our major
            shows hcp<=16
            when  t is H | t is S
     P      No game
            shows hcp<=16

   after 2x (P) 2N (P) 3y (P) 3x (P)
     when x is not C | two_c is natural, y is not x
     P      Partner signed off in our suit

   after 2x (P) 3x (P)
     when x is not C | two_c is natural
     P      Partner's raise is preemptive

== advances: Advancing partner's overcall
   file: conventions/competitive/advances.bid
   needs: base, overcalls

   after (1x) 1y (P)
     2{y}   Raise: 7-11 total points, three-card support
            shows y>=3, hcp+length_points>=7, hcp+length_points<=11
     3{y}   Preemptive raise: four-card support, less than 8 total points
            shows y>=4, hcp+length_points<=7
            when  jump_raise is weak
     1S     8+ total points, four or more spades
            shows S>=4, hcp+length_points>=8
            when  x is not S, y is not S
     1N     8-11 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=8, hcp+length_points<=11
            when  stop(x), S<=3 | x is S | y is S, H<=3 | x is H | y is H, y<=2 | y is C | y is D
     cheapest(C) 9+ total points, five or more clubs
            shows C>=5, hcp+length_points>=9
            when  x is not C, y is not C
     cheapest(D) 9+ total points, five or more diamonds
            shows D>=5, hcp+length_points>=9
            when  x is not D, y is not D
     cheapest(H) 9+ total points, five or more hearts
            shows H>=5, hcp+length_points>=9
            when  x is not H, y is not H
     2{x}   Cue bid: limit raise or better in {y}  [alert]  [artificial]
            shows y>=3, hcp+length_points>=12
     2N     12-15 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=12, hcp+length_points<=15
            when  stop(x), y<=2
     P      Not enough to advance

   after (1x) P (P) 1y (P)
     2{y}   Raise: 9-11 total points, three-card support
            shows y>=3, hcp+length_points>=9, hcp+length_points<=11
     3{y}   Preemptive raise: four-card support, less than 9 total points
            shows y>=4, hcp+length_points<=8
            when  jump_raise is weak
     1S     7+ total points, four or more spades
            shows S>=4, hcp+length_points>=7
            when  x is not S, y is not S
     1N     10-11 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=10, hcp+length_points<=11
            when  stop(x), S<=3 | x is S | y is S, H<=3 | x is H | y is H, y<=2 | y is C | y is D
     cheapest(C) 11+ total points, five or more clubs
            shows C>=5, hcp+length_points>=11
            when  x is not C, y is not C
     cheapest(D) 11+ total points, five or more diamonds
            shows D>=5, hcp+length_points>=11
            when  x is not D, y is not D
     cheapest(H) 11+ total points, five or more hearts
            shows H>=5, hcp+length_points>=11
            when  x is not H, y is not H
     2{x}   Cue bid: limit raise or better in {y}  [alert]  [artificial]
            shows y>=3, hcp+length_points>=13
     2N     13-15 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=13, hcp+length_points<=15
            when  stop(x), y<=2
     P      Not enough to advance a reopening bid

   after (1x) 1y (X) | (1x) P (P) 1y (X)
     2{y}   Raise: 7-11 total points, three-card support
            shows y>=3, hcp+length_points>=7, hcp+length_points<=11
     3{y}   Preemptive raise: four-card support, less than 8 total points
            shows y>=4, hcp+length_points<=7
     P      Nothing to say over their double

   after (1x) 1y (1z) | (1x) P (P) 1y (1z)
     2{y}   Raise: 7-11 total points, three-card support
            shows y>=3, hcp+length_points>=7, hcp+length_points<=11
     3{y}   Preemptive raise: four-card support, less than 8 total points
            shows y>=4, hcp+length_points<=7
     1N     8-11 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=8, hcp+length_points<=11
            when  stop(x), y<=2
     cheapest(S) Free bid: 9+ total points, five or more spades
            shows S>=5, hcp+length_points>=9
            when  x is not S, y is not S, z is not S
     cheapest(H) Free bid: 9+ total points, five or more hearts
            shows H>=5, S<=4, hcp+length_points>=9
            when  x is not H, y is not H, z is not H
     P      Nothing to say over their bid

   after (1x) 1y (2z) | (1x) P (P) 1y (2z)
     2{y}   Raise: 7-11 total points, three-card support
            shows y>=3, hcp+length_points>=7, hcp+length_points<=11
     3{y}   Raise to the three level: four-card support, 8-11 total points
            shows y>=4, hcp+length_points>=8, hcp+length_points<=11
     P      Nothing to say over their bid

   after (1x) 2y (*) | (1x) P (P) 2y (*)
     when y is not x
     P      Not enough to advance

   after (1x) 2y (P) | (1x) 2y (X) | (1x) 2y (2x)
     when y is not x, x is C | (x is D, y is not C) | (x is H, y is S)
     4{y}   Raise to game: four-card support and 11+, with no cue bid to make
            shows y>=4, hcp+length_points>=11
            when  y is H | y is S
     3{y}   Preemptive raise: three-card support for a major, less than 11
            shows y>=3, hcp+length_points<=10
            when  y is H | y is S
     3{y}   Preemptive raise: four-card support for a minor, less than 11
            shows y>=4, hcp+length_points<=10
            when  y is C | y is D

   after (1x) 2y (P) | (1x) 2y (X) | (1x) 2y (2x)
     when y is not x, x is S | (x is H, y is not S) | (x is D, y is C)
     4{y}   Raise to game in partner's major: four-card support, 13+
            shows y>=4, hcp+length_points>=13
            when  y is H | y is S
     3{y}   Raise: 7-10 total points, four-card support
            shows y>=4, hcp+length_points>=7, hcp+length_points<=10
     cheapest(x) Cue bid: limit raise or better in {y}  [alert]  [artificial]
            shows y>=3, hcp+length_points>=11
     2N     11-12 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=11, hcp+length_points<=12
            when  stop(x), y<=2
     3N     13+ total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=13
            when  stop(x), y<=2
     cheapest(S) 10+ total points, five or more spades
            shows S>=5, hcp+length_points>=10
            when  x is not S, y is not S
     cheapest(H) 10+ total points, five or more hearts
            shows H>=5, S<=4, hcp+length_points>=10
            when  x is not H, y is not H
     cheapest(D) 12+ total points, five or more diamonds
            shows D>=5, S<=4, H<=4, hcp+length_points>=12
            when  x is not D, y is not D
     cheapest(C) 12+ total points, five or more clubs
            shows C>=5, S<=4, H<=4, hcp+length_points>=12
            when  x is not C, y is not C

   after (1x) 1y (1N) | (1x) P (P) 1y (1N)
     2{y}   Raise: 9-11 total points, three-card support
            shows y>=3, hcp+length_points>=9, hcp+length_points<=11
     cheapest(x) Cue bid: limit raise or better in {y}  [alert]  [artificial]
            shows y>=3, hcp+length_points>=12
     P      Nothing to say over their notrump

   after (any auction)
     when asked cue_raise(t)
     4{t}   Accepts: game in {t}
            shows hcp+length_points>=13
            when  t is H | t is S
     3N     Accepts: 13+ balanced, game in notrump
            shows balanced, hcp+length_points>=13
            when  t is C | t is D
     cheapest(t) Minimum overcall: no game opposite a limit raise

   after (1x) 1y (P) 1z (P)
     2{z}   Four-card support
            shows z>=4
     2{y}   Six or more {y}
            shows y>=6, z<=3
     1N     11-14 balanced, {x} held
            shows balanced, hcp>=11, hcp<=14, stop(x), z<=3
     P      Nothing more to say

   after (1x) 1y (P) 2z (P)
     3{z}   Four-card support
            shows z>=4, hcp>=11
     2{y}   Six or more {y}
            shows y>=6, z<=3
            when  y is not C
     P      Nothing more to say

   after (1x) 1y (2x) P (P)
     3{y}   Six or more {y}, sound
            shows y>=6, hcp>=12
     P      Nothing more

   after (1N) 2y (*) | (1N) 3y (*)
     P      Not enough to advance

   after (any auction)
     when lho.opened | rho.opened
     P      Defending: nothing more to say

== after-interference: Our side once the opponents come in
   file: conventions/competitive/after-interference.bid
   needs: base

   after 1x (1y)
     when neg
     X      Negative double: 6+ total points, four or more in each unbid major  [alert]  [artificial]
            shows hcp+length_points>=6, S>=4 | x is S | y is S, H>=4 | x is H | y is H, (D>=4 | x is D | y is D, C>=4 | x is C | y is C) | S>=4 | H>=4
            when  S<=4 | x is S | y is S, H<=4 | x is H | y is H | (y is S, hcp<=7), x<=2 | x is C | x is D

   after 1x (1y) | 1x (2y)
     when y is not x, neg
     P      Trap pass: length and strength in {y}
            when  y>=4, quality(y)>=good | top5(y)>=3, hcp>=8, x<=2

   after 1x (1y)
     1S     6+ total points, four or more spades
            shows S>=4, hcp+length_points>=6
            when  x is not S, y is not S, S>=5 | (x is not H, y is not H, H<=3)
     1H     6+ total points, four or more hearts
            shows H>=4, hcp+length_points>=6
            when  x is not H, y is not H, y is not S, H>=5 | (x is not S, y is not S, S<=3)
     1N     6-10 total points, balanced, a stopper in {y}
            shows balanced, hcp+length_points>=6, hcp+length_points<=10
            when  stop(y), S<=3 | x is S | y is S, H<=3 | x is H | y is H
     2{x}   Raise: 6-9 total points, support for partner's suit
            shows x>=3, hcp+length_points>=6, hcp+length_points<=9
            when  x is H | x is S | x>=5, S<=3 | x is S | y is S, H<=3 | x is H | y is H
     jump(x) Preemptive raise: five-card support, less than 8
            shows x>=5, hcp+length_points<=7
     cheapest(C) 8+ total points, five or more clubs
            shows C>=5, hcp+length_points>=8
            when  x is not C, y is not C, new_suit_forcing
     cheapest(D) 8+ total points, five or more diamonds
            shows D>=5, hcp+length_points>=8
            when  x is not D, y is not D, new_suit_forcing
     2H     8+ total points, five or more hearts
            shows H>=5, hcp+length_points>=8
            when  y is S, x is not H, new_suit_forcing
     cheapest(C) 8-12 total points, five or more clubs, not forcing
            shows C>=5, hcp+length_points>=8, hcp<=12
            when  x is not C, y is not C, !new_suit_forcing
     cheapest(D) 8-12 total points, five or more diamonds, not forcing
            shows D>=5, hcp+length_points>=8, hcp<=12
            when  x is not D, y is not D, !new_suit_forcing
     2H     8-12 total points, five or more hearts, not forcing
            shows H>=5, hcp+length_points>=8, hcp<=12
            when  y is S, x is not H, !new_suit_forcing
     jump(C) 13+ total points, five or more clubs: forcing to game
            shows C>=5, hcp>=13
            when  x is not C, y is not C, !new_suit_forcing, H<=4 | y is not S | x is H
     jump(D) 13+ total points, five or more diamonds: forcing to game
            shows D>=5, hcp>=13
            when  x is not D, y is not D, !new_suit_forcing, H<=4 | y is not S | x is H
     3H     13+ total points, five or more hearts: forcing to game
            shows H>=5, hcp>=13
            when  y is S, x is not H, !new_suit_forcing
     cheapest(y) Cue bid: limit raise or better in {x}  [alert]  [artificial]
            shows x>=3, hcp+length_points>=11
            when  cue_raise, x is H | x is S | x>=4
     2N     11-12 total points, balanced, a stopper in {y}
            shows balanced, hcp+length_points>=11, hcp+length_points<=12
            when  stop(y), S<=3 | x is S | y is S, H<=3 | x is H | y is H
     3N     13+ total points, balanced, a stopper in {y}
            shows balanced, hcp+length_points>=13
            when  stop(y), S<=3 | x is S | y is S, H<=3 | x is H | y is H
     P      Nothing to say over the overcall

   after 1x (1y) 2y (3y)
     when y is not x
     4{x}   Game: 16+ opposite the limit raise
            shows hcp>=16
            when  x is H | x is S
     3N     Game: 16+ with a stopper in {y}
            shows hcp>=16, stop(y)
            when  x is C | x is D
     5{x}   Game: 16+, no stopper in {y}
            shows hcp>=16
            when  x is C | x is D
     4{x}   Competes: five or more {x}, nine trumps
            shows x>=5
            when  x is C | x is D
     P      They competed: no game

   after 1x (1y) 2y (3y) P (P)
     when y is not x
     4{x}   Game: 13+ opposite opener's minimum
            shows hcp+length_points>=13
            when  x is H | x is S
     3N     Game: 13+ with a stopper in {y}
            shows hcp+length_points>=13, stop(y)
            when  x is C | x is D
     5{x}   Game in the minor: 14+
            shows hcp+length_points>=14
            when  x is C | x is D
     P      The limit raise: they have bought it

   after 1x (1y) 2y (3y) 4x (P)
     when x is C | x is D, y is not x
     5{x}   Game in the minor: 13+ opposite the fifth trump
            shows hcp+length_points>=13
     P      The limit raise: no game

   after 1x (2y) | 1x (3y)
     when y is not x
     X      Negative double: 8+ total points, four or more in each unbid major  [alert]  [artificial]
            shows hcp+length_points>=8, S>=4 | x is S | y is S, H>=4 | x is H | y is H, (D>=4 | x is D | y is D, C>=4 | x is C | y is C) | S>=4 | H>=4
            when  S<=4 | x is S | y is S, H<=4 | x is H | y is H, neg
     cheapest(y) Cue bid: limit raise or better in {x}  [alert]  [artificial]
            shows x>=3, hcp+length_points>=11
            when  cue_raise
     cheapest(x) Raise: 7-10 total points, three-card support
            shows x>=3, hcp+length_points>=7, hcp+length_points<=10
     cheapest(S) 10+ total points, five or more spades
            shows S>=5, hcp+length_points>=10
            when  x is not S, y is not S, new_suit_forcing
     cheapest(H) 10+ total points, five or more hearts
            shows H>=5, S<=4, hcp+length_points>=10
            when  x is not H, y is not H, new_suit_forcing
     cheapest(D) 10+ total points, five or more diamonds
            shows D>=5, S<=4, H<=4, hcp+length_points>=10
            when  x is not D, y is not D, new_suit_forcing
     cheapest(C) 10+ total points, five or more clubs
            shows C>=5, S<=4, H<=4, hcp+length_points>=10
            when  x is not C, y is not C, new_suit_forcing

   after 1x (2y) | 1x (3y)
     when y is not x, !new_suit_forcing
     cheapest(S) 10+ total points, five or more spades, not forcing
            shows S>=5, hcp+length_points>=10, hcp<=12
            when  x is not S, y is not S
     cheapest(H) 10+ total points, five or more hearts, not forcing
            shows H>=5, S<=4, hcp+length_points>=10, hcp<=12
            when  x is not H, y is not H
     cheapest(D) 10+ total points, five or more diamonds, not forcing
            shows D>=5, S<=4, H<=4, hcp+length_points>=10, hcp<=12
            when  x is not D, y is not D
     cheapest(C) 10+ total points, five or more clubs, not forcing
            shows C>=5, S<=4, H<=4, hcp+length_points>=10, hcp<=12
            when  x is not C, y is not C
     jump(S) 13+ total points, five or more spades: forcing to game
            shows S>=5, hcp>=13
            when  x is not S, y is not S
     jump(H) 13+ total points, five or more hearts: forcing to game
            shows H>=5, S<=4, hcp>=13
            when  x is not H, y is not H
     jump(D) 13+ total points, five or more diamonds: forcing to game
            shows D>=5, S<=4, H<=4, hcp>=13
            when  x is not D, y is not D
     jump(C) 13+ total points, five or more clubs: forcing to game
            shows C>=5, S<=4, H<=4, hcp>=13
            when  x is not C, y is not C

   after 1x (1y) 2z (P) | 1x (1y) 3z (P) | 1x (2y) 3z (P)
     when partner.jumped, z is not x, z is not y, we.forcing=game
     4{z}   Three-card support: game
            shows z>=3
            when  z is H | z is S
     3N     No fit, a stopper in {y}
            shows stop(y)

   after 1x (2y) | 1x (3y)
     when y is not x
     2N     11-12 total points, balanced, a stopper in {y}
            shows balanced, hcp+length_points>=11, hcp+length_points<=12
            when  stop(y)
     3N     13+ total points, balanced, a stopper in {y}
            shows balanced, hcp+length_points>=13
            when  stop(y)
     P      Nothing to say over their overcall

   after 1x (X)
     XX     Redouble: 10+ total points, we own the hand  [alert]  [artificial]
            shows hcp+length_points>=10
            when  S<=4 | x is S | hcp>=12, H<=4 | x is H | x is S | hcp>=12
     cheapest(S) 6-9 total points, four or more spades (10-11 with five)
            shows S>=4, S>H, hcp+length_points>=6, hcp+length_points<=9 | (S>=5, hcp<=11)
            when  x is not S
     cheapest(H) 6-9 total points, four or more hearts (10-11 with five)
            shows H>=4, H>=S, hcp+length_points>=6, hcp+length_points<=9 | (H>=5, hcp<=11)
            when  x is not H, x is not S
     cheapest(D) 6-9 total points, four or more diamonds
            shows D>=4, S<=3, H<=3, hcp+length_points>=6, hcp+length_points<=9
            when  x is not D, x is not H, x is not S
     2{x}   Raise: 4-9 total points, support for partner's suit
            shows x>=3, hcp+length_points>=4, hcp+length_points<=9
            when  x is H | x is S | x>=5, S<=3 | x is S | x is H, H<=3 | x is H | x is S
     3{x}   Preemptive raise: five-card support for a major, less than 8
            shows x>=5, hcp+length_points<=7
            when  x is H | x is S
     1N     6-9 total points, balanced
            shows balanced, hcp+length_points>=6, hcp+length_points<=9
            when  S<=3 | x is S, H<=3 | x is H, x<=2 | x is C | x is D
     P      Nothing to say over the double

   after 1x (1y) X (P) | 1x (2y) X (P) | 1x (3y) X (P)
     cheapest(S) Four spades for partner's double, minimum
            shows S>=4, tp(S)<=15
            when  x is not S, y is not S
     cheapest(H) Four hearts for partner's double, minimum
            shows H>=4, tp(H)<=15
            when  x is not H, y is not H
     jump(S) Four spades, 16-18
            shows S>=4, tp(S)=16..18
            when  x is not S, y is not S
     jump(H) Four hearts, 16-18
            shows H>=4, tp(H)=16..18
            when  x is not H, y is not H
     cheapest(N) 12-14 balanced with a stopper in {y}
            shows balanced, hcp<=14
            when  stop(y)
     jump(N) 18-19 balanced with a stopper in {y}
            shows balanced, hcp=18..19
            when  stop(y)
     cheapest(x) Six cards in {x}, minimum
            shows x>=6, hcp<=15
     jump(x) Six cards in {x}, 16-18
            shows x>=6, hcp=16..18
     4S     Four spades, 19+: game in the fit partner promised
            shows S>=4, tp(S)>=19
            when  x is not S, y is not S
     4H     Four hearts, 19+: game in the fit partner promised
            shows H>=4, tp(H)>=19
            when  x is not H, y is not H
     cheapest(D) Four diamonds, minimum
            shows D>=4, hcp<=15
            when  x is not D, y is not D, S<=3 | x is S | y is S, H<=3 | x is H | y is H
     cheapest(C) Four clubs, minimum
            shows C>=4, C>=D, hcp<=15
            when  x is not C, y is not C, S<=3 | x is S | y is S, H<=3 | x is H | y is H
     cheapest(S) Three spades for partner's four, minimum
            shows S>=3, hcp<=15
            when  x is not S, y is not S, partner.S>=4
     cheapest(H) Three hearts for partner's four, minimum
            shows H>=3, hcp<=15
            when  x is not H, y is not H, partner.H>=4
     cheapest(x) Five cards in {x}
            shows x>=5, hcp<=18
     3N     Game: 17+ with a stopper in {y}
            shows hcp>=17, stop(y)
            when  lho.last=1{y} | lho.last=2{y}
     cheapest(y) Cue bid: 17+, forcing to game  [alert]  [artificial]
            shows hcp>=17
            when  lho.last=1{y} | lho.last=2{y}
     cheapest(x) Nothing better to say over partner's double

   after 1x (1y) 2y (P) | 1x (2y) 3y (P) | 1x (3y) 4y (P)
     when y is not x
     4{x}   Accepts: game in {x}
            shows tp(x)>=14
            when  x is H | x is S
     3N     Accepts: 14+ with a stopper in {y}
            shows hcp>=14
            when  stop(y), x is C | x is D
     5{x}   Accepts: 16+, no stopper in {y}
            shows hcp>=16
            when  x is C | x is D
     cheapest(x) No game opposite a limit raise

   after 1x (1y) 2y (P) 3x (P) | 1x (2y) 3y (P) 3x (P) | 1x (2y) 3y (P) 4x (P)
     when x is C | x is D, y is not x
     3N     Game: 13+ with a stopper in {y}
            shows hcp+length_points>=13, stop(y)
     5{x}   Game in the minor: 14+
            shows hcp+length_points>=14
     P      The limit raise: no game

   after 1x (2y) 3y (P) 4x (P)
     when x is H | x is S, y is not x
     P      Game reached

   after 1x (1y) 2y (P) 2x (P) | 1x (1y) 2y (P) 3x (P) | 1x (2y) 3y (P) 3x (P)
     when x is H | x is S, y is not x
     4{x}   Game: 13+ opposite the sign-off
            shows hcp+length_points>=13
     P      The limit raise: no game

   after 1x (1y) X (2z) | 1x (2y) X (3z)
     when y is not x
     cheapest(S) Four spades, competing over their bid
            shows S>=4, tp(S)<=15
            when  x is not S, y is not S
     cheapest(H) Four hearts, competing over their bid
            shows H>=4, tp(H)<=15
            when  x is not H, y is not H
     jump(S) Four spades, 16-18
            shows S>=4, tp(S)=16..18
            when  x is not S, y is not S
     jump(H) Four hearts, 16-18
            shows H>=4, tp(H)=16..18
            when  x is not H, y is not H
     cheapest(N) 12-15 balanced with a stopper in {y}
            shows balanced, hcp<=15
            when  stop(y)
     jump(N) 18-19 balanced with a stopper in {y}
            shows balanced, hcp=18..19
            when  stop(y)
     cheapest(x) Six cards in {x} and the values to bid again
            shows x>=6, hcp>=13
     P      Minimum: they have bought it

   after 1x (1y) X (3z) | 1x (1y) X (4z) | 1x (2y) X (4z) | 1x (3y) X (4z)
     when y is not x
     cheapest(S) Four spades and 13+: worth competing over their jump
            shows S>=4, hcp>=13
            when  x is not S, y is not S
     cheapest(H) Four hearts and 13+: worth competing over their jump
            shows H>=4, hcp>=13
            when  x is not H, y is not H
     cheapest(N) 13+ balanced with a stopper in {y}
            shows balanced, hcp>=13
            when  stop(y)
     P      They jumped over the double: no room to describe the hand

   after (any auction)
     when they.bid, !lho.opened, !rho.opened, me.last=P
     P      Passed last time, nothing new to say

   after (any auction)
     when they.bid, !lho.opened, !rho.opened, partner.last=P
     P      Partner passed: nothing new to say

   after 1x (1y) P (P) X (P) 2z (P) | 1x (1y) P (P) X (P) 3z (P) | 1x (2y) P (P) X (P) 2z (P) | 1x (2y) P (P) X (P) 3z (P) | 1x (3y) P (P) X (P) 3z (P) | 1x (3y) P (P) X (P) 4z (P)
     when y is not x, z is not y
     3N     Game: 18+ with a stopper in {y}
            shows hcp>=18, stop(y)
     P      Partner's forced answer: no game

== balancing: The balancing seat
   file: conventions/competitive/balancing.bid
   needs: base, overcalls

   after (1x) P (P)
     X      Reopening double: 8+ total points and the unbid suits
            shows hcp+length_points>=8, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C) | hcp+length_points>=oc_max+1
     1S     Reopening: five spades, 8-15 total points
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=one_min, hcp+length_points<=15
            when  x is not S
     1H     Reopening: five hearts, 8-15 total points
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=one_min, hcp+length_points<=15
            when  x is not H
     1D     Reopening: five diamonds, 8-15 total points
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=one_min, hcp+length_points<=15
            when  x is not D
     2C     Reopening: five clubs, 10-15 total points
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=two_min-2, hcp+length_points<=15
            when  x is not C
     2D     Reopening: five diamonds, 10-15 total points
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=two_min-2, hcp+length_points<=15
            when  x is not D, x is not C
     2H     Reopening: five hearts, 10-15 total points
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=two_min-2, hcp+length_points<=15
            when  x is not H, x is not D, x is not C
     1N     Balancing notrump: {nt_min}-{nt_max} balanced with a stopper in {x}
            shows balanced, hcp>=nt_min, hcp<=nt_max
            when  stop(x)
     2N     19-21 balanced with a stopper in {x}
            shows balanced, hcp=19..21
            when  stop(x)
     P      Nothing to reopen with

== cappelletti: Cappelletti and Modified Cappelletti over their 1NT
   file: conventions/competitive/cappelletti.bid
   needs: vs-1nt

   after (1N) | (1N) P (P)
     when def is cappelletti | def is modified_cappelletti
     X      Penalty: 15+ HCP
            shows hcp>=15
     2D     Cappelletti: both majors, 5-4 or longer  [alert]
            shows H>=4, S>=4, H+S>=9, hcp+length_points>=10, hcp<=17
     2N     Cappelletti: both minors, 5-5 or longer  [alert]
            shows C>=5, D>=5, hcp+length_points>=8, hcp<=17

   after (1N) | (1N) P (P)
     when def is cappelletti
     2C     Cappelletti: one long suit, six or more  [alert]
            shows longest>=6, second_longest<=4, hcp+length_points>=12, hcp<=17
     2H     Cappelletti: five hearts and a four-card minor  [alert]
            shows H>=5, S<=3, (C>=4, quality(C)>=fair) | (D>=4, quality(D)>=fair), hcp+length_points>=10, hcp<=17
     2S     Cappelletti: five spades and a four-card minor  [alert]
            shows S>=5, H<=3, (C>=4, quality(C)>=fair) | (D>=4, quality(D)>=fair), hcp+length_points>=10, hcp<=17

   after (any auction)
     when asked capp_one, rho.last=P | rho.last=X
     2D     Relay: bid your suit  [alert]
     P      Long clubs: to play
            shows C>=6
     2H     Six or more hearts: to play
            shows H>=6, hcp<=12
     2S     Six or more spades: to play
            shows S>=6, hcp<=12

   after (any auction)
     when asked capp_relay, rho.last=P | rho.last=X
     P      My suit is diamonds
            shows D>=6
     2H     My suit is hearts
            shows H>=6
     2S     My suit is spades
            shows S>=6
     3C     My suit is clubs
            shows C>=6

   after (1N) | (1N) P (P)
     when def is modified_cappelletti
     2C     Modified Cappelletti: a long minor, or a major and a minor  [alert]
            shows (C>=6 | D>=6, second_longest<=4, hcp+length_points>=12) | ((H>=5, S<=3) | (S>=5, H<=3), C>=4 | D>=4, hcp+length_points>=10), hcp<=17
     2H     Modified Cappelletti: six or more hearts  [alert]
            shows H>=6, second_longest<=4, hcp+length_points>=12, hcp<=17
     2S     Modified Cappelletti: six or more spades  [alert]
            shows S>=6, second_longest<=4, hcp+length_points>=12, hcp<=17

   after (any auction)
     when asked mcapp_one, rho.last=P | rho.last=X
     2D     Relay: show your hand  [alert]

   after (any auction)
     when asked mcapp_relay, rho.last=P | rho.last=X
     P      Long diamonds
            shows D>=6
     2H     Hearts and a minor
            shows H>=5, C>=4 | D>=4
     2S     Spades and a minor
            shows S>=5, C>=4 | D>=4
     3C     Long clubs
            shows C>=6

== dont: DONT over their 1NT
   file: conventions/competitive/dont.bid
   needs: vs-1nt

   after (1N) | (1N) P (P)
     when def is dont | (dont_play, def is other)
     X      DONT: one long suit (clubs, diamonds or hearts)  [alert]
            shows C>=6 | D>=6 | H>=6, second_longest<=3, hcp+length_points>=10, hcp<=15
     2C     DONT: clubs and a higher suit  [alert]
            shows (C>=5, D>=4 | H>=4 | S>=4) | (C>=4, D>=5 | H>=5 | S>=5), hcp+length_points>=10, hcp<=15
     2D     DONT: diamonds and a major  [alert]
            shows (D>=5, H>=4 | S>=4) | (D>=4, H>=5 | S>=5), hcp+length_points>=10, hcp<=15
     2H     DONT: hearts and spades  [alert]
            shows H>=4, S>=4, H+S>=9, hcp+length_points>=10, hcp<=15
     2S     DONT: six or more spades
            shows S>=6, second_longest<=4, hcp+length_points>=10, hcp<=15

   after (any auction)
     when asked dont_one, rho.last=P | rho.last=X | rho.last=XX
     2C     Relay: bid your suit  [alert]
     2D     Six or more diamonds: to play
            shows D>=6
     2H     Six or more hearts: to play
            shows H>=6
     2S     Six or more spades: to play
            shows S>=6

   after (any auction)
     when asked dont_relay, rho.last=P | rho.last=X
     P      My suit is clubs
            shows C>=6
     2D     My suit is diamonds
            shows D>=6
     2H     My suit is hearts
            shows H>=6

== meckwell: Meckwell over their 1NT
   file: conventions/competitive/meckwell.bid
   needs: vs-1nt

   after (1N) | (1N) P (P)
     when def is meckwell
     X      Meckwell: a long minor, or both majors  [alert]
            shows (C>=6 | D>=6, second_longest<=3, hcp+length_points>=12) | (H>=4, S>=4, H+S>=9, hcp+length_points>=10), hcp<=17
     2C     Meckwell: clubs and a major  [alert]
            shows (C>=5, H>=4 | S>=4) | (C>=4, H>=5 | S>=5), hcp+length_points>=10, hcp<=17
     2D     Meckwell: diamonds and a major  [alert]
            shows (D>=5, H>=4 | S>=4) | (D>=4, H>=5 | S>=5), hcp+length_points>=10, hcp<=17
     2H     Natural: six or more hearts, or a good five
            shows H>=6 | (H>=5, quality(H)>=good, C<=3, D<=3), S<=3, hcp+length_points>=11, hcp<=17
     2S     Natural: six or more spades, or a good five
            shows S>=6 | (S>=5, quality(S)>=good, C<=3, D<=3), H<=3, hcp+length_points>=11, hcp<=17
     2N     Meckwell: both minors, 5-5 or longer  [alert]
            shows C>=5, D>=5, hcp+length_points>=8, hcp<=17

   after (any auction)
     when asked meck_one, rho.last=P | rho.last=X | rho.last=XX
     2C     Relay: bid your suit  [alert]

   after (any auction)
     when asked meck_relay, rho.last=P | rho.last=X
     P      My suit is clubs
            shows C>=6
     2D     My suit is diamonds
            shows D>=6
     2H     Both majors  [alert]
            shows H>=4, S>=4

== multi-landy: Landy and Multi-Landy over their 1NT
   file: conventions/competitive/multi-landy.bid
   needs: vs-1nt

   after (1N) | (1N) P (P)
     when def is multi_landy | def is landy
     2C     Landy: both majors, 5-4 or longer  [alert]
            shows H>=4, S>=4, H+S>=9, hcp+length_points>=10, hcp<=17

   after (1N) | (1N) P (P)
     when def is multi_landy
     X      Multi-Landy: a four-card major and a longer minor  [alert]
            shows H=4 | S=4, C>=5 | D>=5, hcp+length_points>=12, hcp<=17
     2D     Multi-Landy: six or more in one major  [alert]
            shows H>=6 | S>=6, second_longest<=4, hcp+length_points>=11, hcp<=17
     2H     Multi-Landy: five hearts and a four-card minor  [alert]
            shows H>=5, S<=3, (C>=4, quality(C)>=fair) | (D>=4, quality(D)>=fair), hcp+length_points>=10, hcp<=17
     2S     Multi-Landy: five spades and a four-card minor  [alert]
            shows S>=5, H<=3, (C>=4, quality(C)>=fair) | (D>=4, quality(D)>=fair), hcp+length_points>=10, hcp<=17
     2N     Multi-Landy: both minors, 5-5 or longer  [alert]
            shows C>=5, D>=5, hcp+length_points>=8, hcp<=17

   after (any auction)
     when asked ml_x, rho.last=P | rho.last=X | rho.last=XX
     2C     Pass or correct: bid your minor  [alert]

   after (any auction)
     when asked ml_minor, rho.last=P | rho.last=X
     P      My minor is clubs
            shows C>=5
     2D     My minor is diamonds
            shows D>=5

   after (any auction)
     when asked ml_multi, rho.last=P | rho.last=X
     2H     Pass or correct: bid your major  [alert]

   after (any auction)
     when asked ml_major, rho.last=P | rho.last=X
     P      My major is hearts
            shows H>=6
     2S     My major is spades
            shows S>=6

== overcalls: Suit and notrump overcalls
   file: conventions/competitive/overcalls.bid
   needs: base

   after (1x)
     1S     Overcall: five spades, {one_min}-{one_max} total points
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=one_min, hcp<=one_max
            when  x is not S, quality(S)>=good | top5(S)>=3 | hcp+length_points>=12
     1H     Overcall: five hearts, {one_min}-{one_max} total points
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=one_min, hcp<=one_max
            when  x is not H, quality(H)>=good | top5(H)>=3 | hcp+length_points>=12
     1D     Overcall: five diamonds, {one_min}-{one_max} total points
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=one_min, hcp<=one_max
            when  x is not D, quality(D)>=good | top5(D)>=3 | hcp+length_points>=12
     2C     Overcall: five clubs, {two_min}-{two_max} total points
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=two_min, hcp+length_points<=two_max
            when  x is not C, C>=6 | quality(C)>=good | top5(C)>=4
     2D     Overcall: five diamonds, {two_min}-{two_max} total points
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=two_min, hcp+length_points<=two_max
            when  x is not D, x is not C, D>=6 | quality(D)>=good | top5(D)>=4
     2H     Overcall: five hearts, {two_min}-{two_max} total points
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=two_min, hcp+length_points<=two_max
            when  x is not H, x is not D, x is not C, H>=6 | quality(H)>=good | top5(H)>=4
     1N     {nt_min}-{nt_max} balanced with a stopper in {x}
            shows balanced, hcp>=nt_min, hcp<=nt_max, S<=4, H<=4
            when  stop(x)

   after (1x) 1N (2x)
     2S     To play: five or more spades
            shows S>=5, hcp<=8
            when  x is H
     3C     To play: six or more clubs
            shows C>=6, hcp<=8, H<=3 | x is H, S<=3 | x is S
     3D     To play: six or more diamonds
            shows D>=6, D>C, hcp<=8, H<=3 | x is H, S<=3 | x is S
     3N     Game: 9+, {x} held
            shows hcp>=9, stop(x)
     P      Nothing to say
            shows hcp>=0

   after (1N)
     when (nt_def is other, !dont_play) | nt_def is landy
     2S     Natural: five spades, 12+ total points
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=12, hcp<=17
     2H     Natural: five hearts, 12+ total points
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=12, hcp<=17
     2D     Natural: five diamonds, 12+ total points
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=12, hcp<=17

   after (1N)
     when nt_def is other, !dont_play
     2C     Natural: five clubs, 12+ total points
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=12, hcp<=17
     3S     Preemptive: seven spades, 4-10
            shows S>=7, hcp=4..10
     3H     Preemptive: seven hearts, 4-10
            shows H>=7, hcp=4..10
     3D     Preemptive: seven diamonds, 4-10
            shows D>=7, hcp=4..10
     3C     Preemptive: seven clubs, 4-10
            shows C>=7, hcp=4..10

   after (1x)
     when jump is weak
     2D     Weak jump overcall: six diamonds, 4-10
            shows D=6, hcp=4..10, H<=3, S<=3
            when  x is not D, x is not H, x is not S, !vul | quality(D)>=good | top5(D)>=3
     2H     Weak jump overcall: six hearts, 4-10
            shows H=6, hcp=4..10, S<=3
            when  x is not H, x is not S, !vul | quality(H)>=good | top5(H)>=3
     2S     Weak jump overcall: six spades, 4-10
            shows S=6, hcp=4..10
            when  x is not S, !vul | quality(S)>=good | top5(S)>=3
     3C     Jump overcall: seven clubs, 4-10
            shows C=7, hcp=4..10, H<=3, S<=3
            when  x is not C, !vul | quality(C)>=good | top5(C)>=3
     3D     Jump overcall: seven diamonds, 4-10
            shows D=7, hcp=4..10, H<=3, S<=3
            when  x is not D, !vul | quality(D)>=good | top5(D)>=3
     3H     Jump overcall: seven hearts, 4-10
            shows H=7, hcp=4..10, S<=3
            when  x is not H, !vul | quality(H)>=good | top5(H)>=3
     3S     Jump overcall: seven spades, 4-10
            shows S=7, hcp=4..10
            when  x is not S, !vul | quality(S)>=good | top5(S)>=3

   after (1x)
     P      No overcall

== responsive-doubles: Responsive doubles
   file: conventions/competitive/responsive-doubles.bid
   card: doubles.responsive.play
   needs: base

   after (1x) X (2x)
     when x is C | x is D
     X      Responsive: both majors, 6+ total points  [alert]  [artificial]
            shows S>=4, H>=4, hcp+length_points>=6

   after (1x) X (3x)
     when x is C | x is D
     X      Responsive: both majors, 8+ total points  [alert]  [artificial]
            shows S>=4, H>=4, hcp+length_points>=8

   after (1x) X (4x)
     when x is C | x is D
     X      Responsive: both majors, 10+ total points  [alert]  [artificial]
            shows S>=4, H>=4, hcp+length_points>=10

   after (1x) X (2x)
     when x is H | x is S
     X      Responsive: both minors, 6+ total points  [alert]  [artificial]
            shows D>=4, C>=4, hcp+length_points>=6

   after (1x) X (3x)
     when x is H | x is S
     X      Responsive: both minors, 8+ total points  [alert]  [artificial]
            shows D>=4, C>=4, hcp+length_points>=8

   after (1x) X (4x)
     when x is H | x is S
     X      Responsive: both minors, 10+ total points  [alert]  [artificial]
            shows D>=4, C>=4, hcp+length_points>=10

   after (1x) 1y (2x) | (1x) 2y (3x) | (1x) P (P) 1y (2x)
     X      Responsive: the two unbid suits, 6+ total points  [alert]  [artificial]
            shows S>=4 | x is S | y is S, H>=4 | x is H | y is H, D>=4 | x is D | y is D, C>=4 | x is C | y is C, y=2, x<=3, hcp+length_points>=10

   after (1x) 1y (3x) | (1x) 2y (4x)
     X      Responsive: the two unbid suits, 8+ total points  [alert]  [artificial]
            shows S>=4 | x is S | y is S, H>=4 | x is H | y is H, D>=4 | x is D | y is D, C>=4 | x is C | y is C, y=2, x<=3, hcp+length_points>=11

   after (any auction)
     when asked responsive
     cheapest(S) Spades, partner's choice taken
            shows S>=3, S>=H
            when  partner.S>=4
     cheapest(H) Hearts, partner's choice taken
            shows H>=3, H>S
            when  partner.H>=4
     cheapest(D) Diamonds, partner's choice taken
            shows D>=3, D>=C
            when  partner.D>=4
     cheapest(C) Clubs, partner's choice taken
            shows C>=3, C>D
            when  partner.C>=4

== support-doubles: Support doubles and redoubles
   file: conventions/competitive/support-doubles.bid
   card: doubles.support.play
   needs: rebids

   after 1x (*) 1M (1z) | 1x (*) 1M (2z) | 1x (*) 1M (3z)
     when M is not x, z is not M
     when (through is none, rho.last<=2{M}) | rho.last<=through
     X      Support double: exactly three {M}  [alert]  [artificial]
            shows M=3
     jump(N) 18-19 balanced with a stopper in {z}
            shows balanced, hcp=18..19, M<=2, stop(z)
            when  lho.last=X
     3N     20+ with a stopper in {z}
            shows hcp>=20, M<=2, stop(z)
            when  lho.last=X
     cheapest(z) Cue bid: 18+, forcing to game  [alert]  [artificial]
            shows hcp>=18, M<=2
            when  lho.last=X

   after 1x (*) 1M (X)
     when M is not x, rdbl
     XX     Support redouble: exactly three {M}  [alert]  [artificial]
            shows M=3

   after (any auction)
     when asked support(M,x,z), rho.last=P, partner.last=X
     cheapest(M) Five or more {M}, minimum: the eight-card fit
            shows M>=5, points<=9
     jump(M) Five or more {M}, 10-11: invitational
            shows M>=5, points=10..11
     4M     Five or more {M}, 12+: game
            shows M>=5, points>=12
     1N     Four {M}, 6-10 balanced with a stopper in {z}
            shows M=4, balanced, points=6..10, stop(z)
     2N     Four {M}, 11-12 with a stopper in {z}: invitational
            shows M=4, semibalanced, points=11..12, stop(z)
     3N     Four {M}, 13+ with a stopper in {z}
            shows M=4, semibalanced, points>=13, stop(z)
     cheapest(x) Four or more {x}, minimum: raises opener's minor
            shows x>=4, M=4, points<=10
            when  x is C | x is D, z is not x, cheapest_rank(x)<=14
     cheapest(D) Four or more diamonds, minimum
            shows D>=4, M=4, points<=10
            when  x is C, z is not D, cheapest_rank(D)<=14, maybe lho.D<=4
     cheapest(C) Four or more clubs, minimum
            shows C>=4, M=4, points<=10
            when  x is not C, z is not C, cheapest_rank(C)<=14, maybe lho.C<=4
     cheapest(z) Cue bid: four {M}, 13+ without a stopper: forcing to game  [alert]  [artificial]
            shows M=4, points>=13
     jump(M) Four {M}, 11-12: invitational in the 4-3 fit
            shows M=4, points=11..12
     P      Penalty: four or more {z} with two of the top five
            shows z>=4, top5(z)>=2, M<=4, hcp>=7
     cheapest(M) Nothing better to say: {M} in the 4-3 fit
            shows M>=4

   after (any auction)
     when asked support(M), rho.last=P, partner.last=XX
     P      Plays one {M} redoubled
     4M     Five or more {M}, 13+: game
            shows M>=5, points>=13

   after (any auction)
     when asked support(M), rho.last!=P
     cheapest(M) Five or more {M}: competes in the eight-card fit
            shows M>=5, points<=11
     4M     Five or more {M}, 12+: game
            shows M>=5, points>=12
     P      They have bid again: nothing more to say

   after (any auction)
     when asked support_cue(M,z)
     3N     A stopper in {z}
            shows stop(z)
     4M     No stopper in {z}: game in the 4-3 fit

== takeout-double: Takeout doubles
   file: conventions/competitive/takeout-double.bid
   needs: base, overcalls

   after (1x)
     X      Takeout: 12+ total points and the unbid suits, or 18+ with any shape
            shows hcp+length_points>=12, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C) | hcp>=oc_max+1, hcp+length_points>=13 | x>=3 | has(A,x) | has(K,x) | (!has(Q,x), !has(J,x)) | !vul | they.vul

   after (1x) X (P) | (1x) P (P) X (P)
     1H     0-8 total points, four or more hearts
            shows H>=4, H>=S | x is S, hcp+length_points<=8 | (H=4, hcp<=9)
            when  x is not H, x is not S
     1S     0-8 total points, four or more spades
            shows S>=4, S>H | x is H, hcp+length_points<=8 | (S=4, hcp<=9)
            when  x is not S
     1D     0-8 total points, four or more diamonds
            shows D>=4, D>C, S<=3 | x is S, H<=3 | x is H, hcp+length_points<=8 | (D=4, hcp<=9)
            when  x is not D, x is not H, x is not S
     2C     0-8 total points, four or more clubs
            shows C>=4, C>=D, S<=3 | x is S, H<=3 | x is H, hcp+length_points<=8 | (C=4, hcp<=9)
            when  x is not C
     2D     0-8 total points, four or more diamonds
            shows D>=4, D>C, S<=3 | x is S, H<=3 | x is H, hcp+length_points<=8 | (D=4, hcp<=9)
            when  x is not D, x is not C
     2H     0-8 total points, four or more hearts
            shows H>=4, H>=S | x is S, hcp+length_points<=8 | (H=4, hcp<=9)
            when  x is not H, x is not D, x is not C
     1N     7-10 HCP, balanced, a stopper in {x}
            shows balanced, hcp>=7, hcp<=10
            when  stop(x)
     2H     9-11 total points, four or more hearts
            shows H>=4, H>=S | x is S, hcp+length_points=9..11, H>=5 | hcp>=10
            when  x is not H, x is not S
     2S     9-11 total points, four or more spades
            shows S>=4, S>H | x is H, hcp+length_points=9..11, S>=5 | hcp>=10
            when  x is not S
     3C     9-11 total points, four or more clubs
            shows C>=4, C>=D, S<=3 | x is S, H<=3 | x is H, hcp+length_points=9..11, C>=5 | hcp>=10
            when  x is not C
     3D     9-11 total points, four or more diamonds
            shows D>=4, D>C, S<=3 | x is S, H<=3 | x is H, hcp+length_points=9..11, D>=5 | hcp>=10
            when  x is not D, x is not C
     3H     9-11 total points, four or more hearts
            shows H>=4, H>=S | x is S, hcp+length_points=9..11, H>=5 | hcp>=10
            when  x is not H, x is not D, x is not C
     2N     11-12 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points=11..12
            when  stop(x)
     3N     Game: 12+, a stopper in {x}
            shows hcp>=12, stop(x), H<=3 | x is H, S<=3 | x is S
     1D     0-8, no four-card suit to show: three diamonds
            shows D>=3, H<=3, S<=3, hcp<=8
            when  x is C
     1H     0-8, no four-card suit to show: three hearts
            shows H>=3, S<=3, hcp<=8
            when  x is not H, x is not S
     2C     0-8, no four-card suit to show: three clubs
            shows C>=3, H<=3, S<=3, hcp<=8
            when  x is not C
     2D     0-8, no four-card suit to show: three diamonds
            shows D>=3, H<=3, S<=3, hcp<=8
            when  x is not D, x is not C
     2{x}   Cue bid: 12+ total points, asking partner to describe his hand  [alert]  [artificial]
            shows hcp+length_points>=12

   after (1x) X (P) 1y (P) | (1x) P (P) X (P) 1y (P)
     P      Minimum takeout double: partner has chosen
            shows hcp<=16
     2{y}   18-19 total points, four-card support
            shows y>=4, hcp+length_points=17..19
     3{y}   20-21 total points, four-card support
            shows y>=4, hcp+length_points=20..21
     4{y}   22+ total points, four-card support for partner's major
            shows y>=4, hcp+length_points>=22
            when  y is H | y is S
     1N     18-19 balanced with a stopper in {x}
            shows balanced, hcp=17..19
            when  stop(x)
     cheapest(S) 18+ total points and a five-card spade suit
            shows S>=5, hcp+length_points>=18 | hcp>=17
            when  x is not S, y is not S
     cheapest(H) 18+ total points and a five-card heart suit
            shows H>=5, hcp+length_points>=18 | hcp>=17
            when  x is not H, y is not H
     cheapest(D) 18+ total points and a five-card diamond suit
            shows D>=5, hcp+length_points>=18 | hcp>=17
            when  x is not D, y is not D
     cheapest(C) 18+ total points and a five-card club suit
            shows C>=5, hcp+length_points>=18 | hcp>=17
            when  x is not C, y is not C

   after (1x) X (P) 2y (P) | (1x) P (P) X (P) 2y (P)
     P      Minimum takeout double: partner has chosen
            shows hcp<=16
     3{y}   18+ total points, four-card support
            shows y>=4, hcp+length_points>=18 | hcp>=17
     3{y}   20+ and three-card support
            shows y=3, hcp>=20
     cheapest(S) 18+ total points and a five-card spade suit
            shows S>=5, hcp+length_points>=18 | hcp>=17
            when  x is not S, y is not S
     cheapest(H) 18+ total points and a five-card heart suit
            shows H>=5, hcp+length_points>=18 | hcp>=17
            when  x is not H, y is not H
     cheapest(D) 18+ total points and a five-card diamond suit
            shows D>=5, hcp+length_points>=18 | hcp>=17
            when  x is not D, y is not D
     cheapest(C) 18+ total points and a five-card club suit
            shows C>=5, hcp+length_points>=18 | hcp>=17
            when  x is not C, y is not C
     2N     18-19 balanced with a stopper in {x}
            shows balanced, hcp=17..19
            when  stop(x)

   after (1x) X (2x) P (P)
     cheapest(S) 16+ and five spades
            shows S>=5, hcp>=16
            when  x is not S
     cheapest(H) 16+ and five hearts
            shows H>=5, S<=4, hcp>=16
            when  x is not H
     X      Takeout again: short in {x}
            shows x<=1, hcp>=12
     P      Nothing more

   after (1x) X (2x) P (P) X (P)
     cheapest(S) Takeout: four or more spades
            shows S>=4, S>=H, S>=D, S>=C
            when  x is not S
     cheapest(H) Takeout: four or more hearts
            shows H>=4, H>=D, H>=C
            when  x is not H
     cheapest(D) Takeout: my longest, diamonds
            shows D>=C
            when  x is not D
     cheapest(C) Takeout: my longest, clubs
            shows C>=3
            when  x is not C
     P      Penalty: five of their suit
            shows x>=5, hcp>=5

   after (1x) X (P) 1y (2x) | (1x) X (P) 2y (2x)
     3{y}   16+, four-card support
            shows y>=4, hcp+length_points>=16
     cheapest(C) 16+ and five clubs
            shows C>=5, hcp>=16, y<=3
            when  x is not C, y is not C
     cheapest(D) 16+ and five diamonds
            shows D>=5, D>C, hcp>=16, y<=3
            when  x is not D, y is not D
     P      Nothing more

   after (1x) X (1y) P (*) | (1x) X (2y) P (*)
     when y is not x, !rho.last=P
     cheapest(S) 18+ total points and five spades
            shows S>=5, hcp+length_points>=18 | hcp>=17
            when  x is not S, y is not S
     cheapest(H) 18+ total points and five hearts
            shows H>=5, S<=4, hcp+length_points>=18 | hcp>=17
            when  x is not H, y is not H
     cheapest(D) 18+ total points and five diamonds
            shows D>=5, S<=4, H<=4, hcp+length_points>=18 | hcp>=17
            when  x is not D, y is not D
     cheapest(C) 18+ total points and five clubs
            shows C>=5, D<=4, S<=4, H<=4, hcp+length_points>=18 | hcp>=17
            when  x is not C, y is not C

   after (1x) X (P) 2x (*)
     when !rho.last=P
     X      Power double: 17+ HCP
            shows hcp>=17
     P      No extras: 16 or less
            shows hcp<=16
     cheapest(S) Four or more spades, no extras
            shows S>=4, hcp<=16
            when  x is not S
     cheapest(H) Four or more hearts, no extras
            shows H>=4, S<=3, hcp<=16
            when  x is not H
     cheapest(N) A stopper in {x}, no extras
            shows stop(x), hcp<=16
     cheapest(D) Four or more diamonds, no extras
            shows D>=4, D>C | x is C, hcp<=16
            when  x is not D
     cheapest(C) Four or more clubs, no extras
            shows C>=4, C>=D | x is D, hcp<=16
            when  x is not C

   after (1x) X (1y) | (1x) P (P) X (1y)
     1S     Free bid: 6+ total points, four or more spades
            shows S>=4, hcp+length_points>=6
            when  x is not S, y is not S
     cheapest(H) Free bid: 6+ total points, five or more hearts
            shows H>=5, hcp+length_points>=6
            when  x is not H, y is not H
     cheapest(D) Free bid: 6+ total points, five or more diamonds
            shows D>=5, S<=3, H<=4, hcp+length_points>=6
            when  x is not D, y is not D
     cheapest(C) Free bid: 6+ total points, five or more clubs
            shows C>=5, S<=3, H<=4, hcp+length_points>=6
            when  x is not C, y is not C
     1N     8-11 total points, balanced, a stopper in both their suits
            shows balanced, hcp+length_points>=8, hcp+length_points<=11
            when  stop(x), stop(y)
     2{x}   Cue bid: 12+ total points  [alert]  [artificial]
            shows hcp+length_points>=12
     P      No free bid

   after (1x) X (2y) | (1x) P (P) X (2y)
     cheapest(S) Free bid: 8+ total points, five or more spades
            shows S>=5, hcp+length_points>=8
            when  x is not S, y is not S
     cheapest(H) Free bid: 8+ total points, five or more hearts
            shows H>=5, S<=4, hcp+length_points>=8
            when  x is not H, y is not H
     cheapest(D) Free bid: 8+ total points, five or more diamonds
            shows D>=5, S<=4, H<=4, hcp+length_points>=8
            when  x is not D, y is not D
     cheapest(C) Free bid: 8+ total points, five or more clubs
            shows C>=5, S<=4, H<=4, hcp+length_points>=8
            when  x is not C, y is not C
     2N     11-12 total points, balanced, a stopper in {x}
            shows balanced, hcp+length_points>=11, hcp+length_points<=12
            when  stop(x)
     P      No free bid

   after (1x) X (XX) | (1x) P (P) X (XX)
     cheapest(S) Four or more spades
            shows S>=4, S>H
            when  x is not S
     cheapest(H) Four or more hearts
            shows H>=4, H>=S
            when  x is not H
     cheapest(D) Four or more diamonds
            shows D>=4, D>C, S<=3 | x is S, H<=3 | x is H
            when  x is not D
     cheapest(C) Four or more clubs
            shows C>=4, C>=D, S<=3 | x is S, H<=3 | x is H
            when  x is not C
     P      No four-card suit to name

   after (1x) X (XX) P (P)
     cheapest(C) Rescue: four or more clubs, the cheapest
            shows C>=4
            when  x is not C
     cheapest(D) Rescue: four or more diamonds, the cheapest
            shows D>=4, C<=3 | x is C
            when  x is not D
     cheapest(H) Rescue: four or more hearts, the cheapest
            shows H>=4, C<=3 | x is C, D<=3 | x is D
            when  x is not H
     cheapest(S) Rescue: four or more spades
            shows S>=4, C<=3 | x is C, D<=3 | x is D, H<=3 | x is H
            when  x is not S
     P      Leaves it in: four or more of their suit
            shows x>=4

== their-1nt-overcall: Responder over their 1NT overcall
   file: conventions/competitive/their-1nt-overcall.bid
   needs: base

   after 1x (1N)
     X      Penalty: 10+ total points, no long suit of our own
            shows hcp+length_points>=10
            when  S<=4 | x is S, H<=4 | x is H, C<=5, D<=5
     2{x}   Raise: 6-9 total points, support for partner's suit
            shows x>=3, tp(x)>=6, tp(x)<=9
            when  x is H | x is S | x>=5
     2H     9+ total points, five or more hearts
            shows H>=5, hcp+length_points>=9
            when  x is not H
     2S     9+ total points, five or more spades
            shows S>=5, hcp+length_points>=9
            when  x is not S
     2C     9+ total points, six or more clubs
            shows C>=6, hcp+length_points>=9
            when  x is not C
     2D     9+ total points, six or more diamonds
            shows D>=6, hcp+length_points>=9
            when  x is not D
     3C     Preemptive: seven or more clubs, 5-9 total points
            shows C>=7, hcp+length_points>=5, hcp+length_points<=9
            when  x is not C
     3D     Preemptive: seven or more diamonds, 5-9 total points
            shows D>=7, hcp+length_points>=5, hcp+length_points<=9
            when  x is not D
     P      Nothing to say over their notrump

   after 1x (1N) X (P)
     2{x}   Pulls: six or more {x}, a minimum with a singleton or void
            shows x>=6, hcp<=13, shortest<=1
     P      Sits for partner's penalty double

   after 1x (1N) X (*)
     when !rho.last=P
     P      Partner doubled: his move next

   after 1x (1N) 3z (P)
     when z is C | z is D, z is not x
     5{z}   Game in partner's suit: 19+ and support
            shows z>=2, hcp>=19
     P      Partner preempted: his suit, and no game

== total-tricks: The Law of Total Tricks
   file: conventions/competitive/total-tricks.bid
   needs: base

   after (any auction)
     when they.bid, !lho.last=P | !rho.last=P, !game_reached
     2x     Total tricks: eight trumps between us: the two level
            shows x+partner.x.min=8
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     2x     Total tricks: eight trumps between us, a trick hedged vulnerable: the two level
            shows x+partner.x.min-1=8
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     2x     Total tricks: eight trumps between us, partner's double counted as four: the two level
            shows x+partner.x.min+1=8
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     2x     Total tricks: eight trumps between us, partner's double counted as four, a trick hedged vulnerable: the two level
            shows x+partner.x.min+1-1=8
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     3x     Total tricks: nine trumps between us: the three level
            shows x+partner.x.min=9
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     3x     Total tricks: nine trumps between us, a trick hedged vulnerable: the three level
            shows x+partner.x.min-1=9
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     3x     Total tricks: nine trumps between us, partner's double counted as four: the three level
            shows x+partner.x.min+1=9
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     3x     Total tricks: nine trumps between us, partner's double counted as four, a trick hedged vulnerable: the three level
            shows x+partner.x.min+1-1=9
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     4x     Total tricks: ten+ trumps between us: the four level
            shows x+partner.x.min>=10
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     4x     Total tricks: ten+ trumps between us, a trick hedged vulnerable: the four level
            shows x+partner.x.min-1>=10
            when  !((lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3), vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     4x     Total tricks: ten+ trumps between us, partner's double counted as four: the four level
            shows x+partner.x.min+1>=10
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, !vul | they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24
     4x     Total tricks: ten+ trumps between us, partner's double counted as four, a trick hedged vulnerable: the four level
            shows x+partner.x.min+1-1>=10
            when  (lho.H>=5 | rho.H>=5, partner.S>=3, partner.D>=3, partner.C>=3) | (lho.S>=5 | rho.S>=5, partner.H>=3, partner.D>=3, partner.C>=3), partner.x.min=3, vul, !they.vul, partner.x>=3, hcp>=5, hcp+partner.hcp.min<=24

== two-suited-overcalls: Michaels cue bids and the Unusual 2NT
   file: conventions/competitive/two-suited-overcalls.bid
   needs: base, overcalls

   after (1m)
     when mich_minors | mich_quasi | mich_play
     2{m}   Michaels: five or more in each major  [alert]
            shows H>=5, S>=5, hcp+length_points>=9, hcp<=17
            when  strength is wide_range, !vul
     2{m}   Michaels: five or more in each major  [alert]
            shows H>=5, S>=5, hcp+length_points>=11, hcp<=17
            when  strength is wide_range, vul
     2{m}   Michaels, weak: five or more in each major  [alert]
            shows H>=5, S>=5, hcp+length_points>=9, hcp<=11
            when  strength is weak_or_strong, !vul
     2{m}   Michaels, weak: five or more in each major  [alert]
            shows H>=5, S>=5, hcp+length_points>=11, hcp<=11
            when  strength is weak_or_strong, vul
     2{m}   Michaels, strong: five or more in each major, 16+  [alert]
            shows H>=5, S>=5, hcp>=16
            when  strength is weak_or_strong

   after (1H)
     when mich_majors | mich_play
     2H     Michaels: five or more spades and a five-card minor  [alert]
            shows S>=5, C>=5 | D>=5, hcp+length_points>=9, hcp<=17
            when  strength is wide_range, !vul
     2H     Michaels: five or more spades and a five-card minor  [alert]
            shows S>=5, C>=5 | D>=5, hcp+length_points>=11, hcp<=17
            when  strength is wide_range, vul
     2H     Michaels, weak: five or more spades and a five-card minor  [alert]
            shows S>=5, C>=5 | D>=5, hcp+length_points>=9, hcp<=11
            when  strength is weak_or_strong, !vul
     2H     Michaels, weak: five or more spades and a five-card minor  [alert]
            shows S>=5, C>=5 | D>=5, hcp+length_points>=11, hcp<=11
            when  strength is weak_or_strong, vul
     2H     Michaels, strong: five or more spades and a five-card minor, 16+  [alert]
            shows S>=5, C>=5 | D>=5, hcp>=16
            when  strength is weak_or_strong

   after (1S)
     when mich_majors | mich_play
     2S     Michaels: five or more hearts and a five-card minor  [alert]
            shows H>=5, C>=5 | D>=5, hcp+length_points>=9, hcp<=17
            when  strength is wide_range, !vul
     2S     Michaels: five or more hearts and a five-card minor  [alert]
            shows H>=5, C>=5 | D>=5, hcp+length_points>=11, hcp<=17
            when  strength is wide_range, vul
     2S     Michaels, weak: five or more hearts and a five-card minor  [alert]
            shows H>=5, C>=5 | D>=5, hcp+length_points>=9, hcp<=11
            when  strength is weak_or_strong, !vul
     2S     Michaels, weak: five or more hearts and a five-card minor  [alert]
            shows H>=5, C>=5 | D>=5, hcp+length_points>=11, hcp<=11
            when  strength is weak_or_strong, vul
     2S     Michaels, strong: five or more hearts and a five-card minor, 16+  [alert]
            shows H>=5, C>=5 | D>=5, hcp>=16
            when  strength is weak_or_strong

   after (1H) | (1S)
     when u2n_play | u2n_jump
     2N     Unusual 2NT: five or more in each minor  [alert]
            shows C>=5, D>=5, hcp+length_points>=9

   after (1C)
     when u2n_play | u2n_jump
     2N     Unusual 2NT: five or more diamonds and hearts  [alert]
            shows D>=5, H>=5, hcp+length_points>=9

   after (1D)
     when u2n_play | u2n_jump
     2N     Unusual 2NT: five or more clubs and hearts  [alert]
            shows C>=5, H>=5, hcp+length_points>=9

   after (1m) 2m (P) | (1m) 2m (X)
     when partner.H>=5, partner.S>=5
     2H     Preference: more hearts than spades
            shows H>S
     2S     Preference: spades, at least as many as hearts
            shows S>=H
     3H     Jump preference: invitational, 10-12 with three hearts
            shows H>S, H>=3, hcp>=10, hcp<=12
     3S     Jump preference: invitational, 10-12 with three spades
            shows S>=H, S>=3, hcp>=10, hcp<=12
     4H     Game in hearts: to play (a preempt with four, or 13-15)
            shows H>S, (H>=4, hcp<=9) | (H>=3, hcp>=13, hcp<=15)
     4S     Game in spades: to play (a preempt with four, or 13-15)
            shows S>=H, (S>=4, hcp<=9) | (S>=3, hcp>=13, hcp<=15)
     3{m}   Cue bid: 16+, game or slam interest; describe your hand  [alert]
            shows hcp>=16
     3N     To play: 13+, their suit held, no major fit
            shows hcp>=13, H<=2, S<=2, stop(m)
     2D     Natural: six or more diamonds, no major fit
            shows D>=6, H<=2, S<=2, hcp<=12
            when  m is C

   after (1m) 2m (*)
     when partner.H>=5, partner.S>=5
     cheapest(H) Competes: three or more hearts, more than spades
            shows H>=3, H>S, hcp<=12
     cheapest(S) Competes: three or more spades
            shows S>=3, S>=H, hcp<=12
     4H     Game in hearts over their bid
            shows H>=4, H>S
     4S     Game in spades over their bid
            shows S>=4, S>=H
     P      No fit worth competing with

   after (1H) 2H (P) | (1H) 2H (X)
     when partner.S>=5
     2S     Preference: three or more spades
            shows S>=3
     2N     Asks for your minor: at most two spades  [alert]
            shows S<=2
     3S     Jump preference: invitational, 10-12 with three spades
            shows S>=3, hcp>=10, hcp<=12
     4S     Game in spades: to play (a preempt with four, or 13-15)
            shows (S>=4, hcp<=9) | (S>=3, hcp>=13, hcp<=15)
     3H     Cue bid: 16+, game or slam interest; describe your hand  [alert]
            shows hcp>=16
     3N     To play: 13+, hearts held, no spade fit
            shows hcp>=13, S<=2, stop(H)

   after (1S) 2S (P) | (1S) 2S (X)
     when partner.H>=5
     3H     Preference: three or more hearts
            shows H>=3
     2N     Asks for your minor: at most two hearts  [alert]
            shows H<=2
     4H     Game in hearts: to play (a preempt with four, or 13-15)
            shows (H>=4, hcp<=9) | (H>=3, hcp>=13, hcp<=15)
     3S     Cue bid: 12+, game interest; describe your hand  [alert]
            shows hcp>=12
     3N     To play: 13+, spades held, no heart fit
            shows hcp>=13, H<=2, stop(S)

   after (1M) 2M (*)
     when partner.S>=5 | partner.H>=5
     cheapest(S) Competes: three or more spades
            shows S>=3, hcp<=12
            when  M is H
     cheapest(H) Competes: three or more hearts
            shows H>=3, hcp<=12
            when  M is S
     P      No fit worth competing with

   after (1M) 2M (P) 2N (P)
     3C     My minor is clubs
            shows C>=5, C>=D
     3D     My minor is diamonds
            shows D>=5, D>C

   after (1M) 2M (P) 2N (P) 3m (P)
     P      To play in partner's minor
            shows hcp<=12
     3N     Game: 13+, {M} held
            shows hcp>=13, stop(M)
     5{m}   Game in partner's minor: 13+, three-card support
            shows hcp>=13, m>=3

   after (1M) 2N (P) | (1M) 2N (X)
     when partner.C>=5, partner.D>=5
     3C     Preference: more clubs than diamonds
            shows C>D
     3D     Preference: diamonds, at least as many as clubs
            shows D>=C
     4C     Preemptive: four or more clubs, up to 8
            shows C>=4, C>D, hcp<=8
     4D     Preemptive: four or more diamonds, up to 8
            shows D>=4, D>=C, hcp<=8
     5C     Game in clubs: 12+ with four-card support
            shows C>=4, C>D, hcp>=12
     5D     Game in diamonds: 12+ with four-card support
            shows D>=4, D>=C, hcp>=12
     3N     To play: 13+, both majors held
            shows hcp>=13, stop(H), stop(S)
     3{M}   Cue bid: 16+, game or slam interest  [alert]
            shows hcp>=16

   after (1C) 2N (P) | (1C) 2N (X)
     when partner.D>=5, partner.H>=5
     3D     Preference: more diamonds than hearts
            shows D>H
     3H     Preference: hearts, at least as many as diamonds
            shows H>=D
     4D     Preemptive: four or more diamonds, up to 8
            shows D>=4, D>H, hcp<=8
     4H     Game in hearts: to play (a preempt with four, or 12-15)
            shows H>=D, (H>=4, hcp<=8) | (H>=3, hcp>=12, hcp<=15)
     3N     To play: 13+, clubs and spades held
            shows hcp>=13, stop(C), stop(S)
     3C     Cue bid: 16+, game or slam interest  [alert]
            shows hcp>=16

   after (1D) 2N (P) | (1D) 2N (X)
     when partner.C>=5, partner.H>=5
     3C     Preference: more clubs than hearts
            shows C>H
     3H     Preference: hearts, at least as many as clubs
            shows H>=C
     4C     Preemptive: four or more clubs, up to 8
            shows C>=4, C>H, hcp<=8
     4H     Game in hearts: to play (a preempt with four, or 12-15)
            shows H>=C, (H>=4, hcp<=8) | (H>=3, hcp>=12, hcp<=15)
     3N     To play: 13+, diamonds and spades held
            shows hcp>=13, stop(D), stop(S)
     3D     Cue bid: 16+, game or slam interest  [alert]
            shows hcp>=16

   after (1x) 2N (*)
     when partner.longest>=5, partner.second_longest>=5
     P      No fit worth competing with

   after (1x) 2x (P) 2y (P) | (1x) 2x (P) 3y (P)
     when y is not x, y is H | y is S, !partner.jumped
     P      Minimum: partner has chosen
     3{y}   Strong two-suiter: invites game
            shows hcp>=15, hcp<=16
     4{y}   Strong two-suiter: game
            shows hcp>=17

   after (1x) 2x (P) 3y (P)
     when y is not x, y is H | y is S, partner.jumped
     4{y}   Accepts the invitation
            shows hcp>=11
     P      Declines: a minimum

   after (1x) 2x (P) 3x (P)
     cheapest(S) Minimum: spades
            shows S>=H, hcp<=12
     cheapest(H) Minimum: hearts
            shows H>S, hcp<=12
     4S     Maximum: game in spades
            shows S>=H, hcp>=13
     4H     Maximum: game in hearts
            shows H>S, hcp>=13

   after (1x) 2N (P) 3y (P)
     when y is not x
     P      Minimum: partner has chosen
     4{y}   Strong: game in hearts
            shows hcp>=17
            when  y is H
     3N     Strong: 17+, {x} held
            shows hcp>=17, stop(x)

   after (1x) 2N (P) 3x (P)
     cheapest(C) Minimum: clubs
            shows C>=5, C>=D, hcp<=12
            when  x is H | x is S
     cheapest(D) Minimum: diamonds
            shows D>=5, D>C, hcp<=12
            when  x is H | x is S
     3N     Maximum: 13+, {x} held
            shows hcp>=13, stop(x)
     cheapest(H) Hearts
            shows H>=5
            when  x is C | x is D

   after 1H (2H)
     when rho.S>=5
     2S     Cue bid: limit raise or better in hearts  [alert]
            shows H>=3, hcp+length_points>=10
     3H     Competitive raise: 6-9, three or more hearts
            shows H>=3, hcp+length_points>=6, hcp+length_points<=9
     4H     Preemptive raise: four or more hearts, under 10
            shows H>=4, hcp+length_points<=9
     2N     11-12, spades held, no fit
            shows hcp>=11, hcp<=12, stop(S), H<=2
     3N     13+, spades held, no fit
            shows hcp>=13, stop(S), H<=2
     3C     Natural: five or more clubs, 12+, forcing
            shows C>=5, H<=2, hcp>=12
     3D     Natural: five or more diamonds, 12+, forcing
            shows D>=5, H<=2, hcp>=12
     P      Nothing to say over their Michaels

   after 1S (2S)
     when rho.H>=5
     3H     Cue bid: limit raise or better in spades  [alert]
            shows S>=3, hcp+length_points>=10
     3S     Competitive raise: 6-9, three or more spades
            shows S>=3, hcp+length_points>=6, hcp+length_points<=9
     4S     Preemptive raise: four or more spades, under 10
            shows S>=4, hcp+length_points<=9
     2N     11-12, hearts held, no fit
            shows hcp>=11, hcp<=12, stop(H), S<=2
     3N     13+, hearts held, no fit
            shows hcp>=13, stop(H), S<=2
     3C     Natural: five or more clubs, 12+, forcing
            shows C>=5, S<=2, hcp>=12
     3D     Natural: five or more diamonds, 12+, forcing
            shows D>=5, S<=2, hcp>=12
     P      Nothing to say over their Michaels

   after 1m (2m)
     when rho.H>=5, rho.S>=5
     2H     Cue bid: limit raise or better in {m}  [alert]
            shows m>=4, hcp+length_points>=11
     3{m}   Competitive raise: 6-9, four or more {m}
            shows m>=4, hcp+length_points>=6, hcp+length_points<=9
     2D     Natural: five or more diamonds, 8+
            shows D>=5, hcp+length_points>=8
            when  m is C
     3C     Natural: five or more clubs, 10+
            shows C>=5, hcp+length_points>=10
            when  m is D
     2N     11-12, both majors held
            shows hcp>=11, hcp<=12, stop(H), stop(S)
     3N     13+, both majors held
            shows hcp>=13, stop(H), stop(S)
     P      Nothing to say over their Michaels

   after 1M (2N)
     when rho.C>=5, rho.D>=5
     3{M}   Competitive raise: 7-10, three or more {M}
            shows M>=3, hcp+length_points>=7, hcp+length_points<=10
     4{M}   Preemptive raise: four or more {M}, under 10
            shows M>=4, hcp+length_points<=9
     3N     13+, both minors held, no fit
            shows hcp>=13, stop(C), stop(D), M<=2
     P      Nothing to say over their 2NT

   after 1M (2N)
     when rho.C>=5, rho.D>=5, !uvu
     3C     Cue bid: limit raise or better in {M}  [alert]
            shows M>=3, hcp+length_points>=10
     3D     Cue bid: game force without a fit  [alert]
            shows hcp>=13, M<=2
     3S     Natural: five or more spades, 12+, forcing
            shows S>=5, H<=2, hcp>=12
            when  M is H

   after 1M (2N)
     when rho.C>=5, rho.D>=5, uvu
     3D     Unusual vs Unusual: limit raise or better in {M}  [alert]
            shows M>=3, hcp+length_points>=10
     3C     Unusual vs Unusual: game force with five of the other major  [alert]
            shows hcp>=13, M<=2, S>=5 | M is S, H>=5 | M is H
     3S     Natural: five or more spades, 7-10
            shows S>=5, H<=2, hcp+length_points>=7, hcp+length_points<=10
            when  M is H

   after 1C (2N)
     when rho.D>=5, rho.H>=5
     3D     Cue bid: limit raise or better in clubs  [alert]
            shows C>=5, hcp+length_points>=10
     3C     Competitive raise: 6-9, five or more clubs
            shows C>=5, hcp+length_points>=6, hcp+length_points<=9
     3S     Natural: five or more spades, 10+, forcing
            shows S>=5, hcp+length_points>=10
     3N     13+, diamonds and hearts held
            shows hcp>=13, stop(D), stop(H)
     P      Nothing to say over their 2NT

   after 1D (2N)
     when rho.C>=5, rho.H>=5
     3C     Cue bid: limit raise or better in diamonds  [alert]
            shows D>=4, hcp+length_points>=10
     3D     Competitive raise: 6-9, four or more diamonds
            shows D>=4, hcp+length_points>=6, hcp+length_points<=9
     3S     Natural: five or more spades, 10+, forcing
            shows S>=5, hcp+length_points>=10
     3N     13+, clubs and hearts held
            shows hcp>=13, stop(C), stop(H)
     P      Nothing to say over their 2NT

   after 1m (2m) 3m (P) | 1M (2M) 3M (P) | 1M (2N) 3M (P)
     when they.bid
     4{M}   Game: 17+ opposite the competitive raise
            shows tp(M)>=17
     P      The raise was competitive: no game

   after 1x (2x) 2N (P)
     when they.bid
     3N     Accepts: 14+
            shows hcp>=14
     P      Minimum: 2NT is enough

   after 1x (2x) 3x (*) | 1x (2x) 4x (*) | 1x (2N) 3x (*) | 1x (2N) 4x (*) | 1x (2x) 2N (*) | 1x (2x) 3N (*) | 1x (2N) 3N (*)
     when they.bid
     X      Penalty: 15+ HCP, they have bid over partner's raise
            shows hcp>=15
     P      Partner has raised: nothing more to say

   after 1x (2x) 3x (*) X (P) | 1x (2x) 4x (*) X (P) | 1x (2N) 3x (*) X (P) | 1x (2N) 4x (*) X (P) | 1x (2x) 2N (*) X (P) | 1x (2x) 3N (*) X (P) | 1x (2N) 3N (*) X (P)
     when they.bid
     P      Partner doubled for penalty: leave it in

   after (any auction)
     when asked limit_raise(t)
     4{t}   Accepts: game in {t}
            shows tp(t)>=14
            when  t is H | t is S
     3N     Accepts: 14+, game in notrump
            shows hcp>=14
            when  t is C | t is D
     5{t}   Accepts: 16+, game in {t}
            shows hcp>=16, t>=5
            when  t is C | t is D
     cheapest(t) Minimum: no game opposite a limit raise

== vs-1nt: Over their 1NT: what every defence shares
   file: conventions/competitive/vs-1nt.bid
   needs: base

   after (1N)
     when !def is other | dont_play
     3S     Preemptive: seven spades
            shows S>=7, hcp>=4, hcp+length_points<=11
     3H     Preemptive: seven hearts
            shows H>=7, hcp>=4, hcp+length_points<=11
     3D     Preemptive: seven diamonds
            shows D>=7, hcp>=4, hcp+length_points<=11
     3C     Preemptive: seven clubs
            shows C>=7, hcp>=4, hcp+length_points<=11

   after (1N) | (1N) P (P)
     P      Nothing to say over their 1NT

   after (any auction)
     when asked nt_majors, rho.last=P | rho.last=X
     P      Hearts: to play
            shows H>=S
            when  partner.last=2H
     2H     Preference: hearts
            shows H>=S
     2S     Preference: spades
            shows S>H
     3H     Invitational: four hearts
            shows H>=4, H>=S, tp(H)=10..12
     3S     Invitational: four spades
            shows S>=4, S>H, tp(S)=10..12
     4H     Game in hearts
            shows H>=3, H>=S, tp(H)>=13
     4S     Game in spades
            shows S>=3, S>H, tp(S)>=13
     P      Long clubs: to play
            shows C>=6, H<=2, S<=2
            when  partner.last=2C
     P      Long diamonds: to play
            shows D>=6, H<=2, S<=2
            when  partner.last=2D
     3C     Long clubs: to play
            shows C>=6, H<=2, S<=2
            when  !partner.last=2C
     3D     Long diamonds: to play
            shows D>=6, H<=2, S<=2
            when  !partner.last=2D

   after (any auction)
     when asked nt_mm(M), rho.last=P | rho.last=X
     P      {M} to play
            shows M>=2
     3{M}   Invitational raise
            shows M>=3, tp(M)=10..12
     4{M}   Game in {M}
            shows M>=3, tp(M)>=13
     2N     Which is your minor?  [alert]  [artificial]
            shows M<=1
     2S     Six or more spades: to play
            shows S>=6, M<=2
            when  M is H
     3H     Six or more hearts: to play
            shows H>=6, M<=2
            when  M is S
     3C     Six or more clubs: to play
            shows C>=6, M<=1
     3D     Six or more diamonds: to play
            shows D>=6, M<=1

   after (any auction)
     when asked nt_which_minor, rho.last=P | rho.last=X
     3C     My minor is clubs
            shows C>=4, C>=D
     3D     My minor is diamonds
            shows D>=4, D>C

   after (any auction)
     when asked nt_minors, rho.last=P | rho.last=X
     3C     Preference: clubs
            shows C>D
     3D     Preference: diamonds
            shows D>=C
     5C     Game in clubs
            shows C>=4, C>D, tp(C)>=14
     5D     Game in diamonds
            shows D>=4, D>=C, tp(D)>=14
     3H     Six or more hearts: to play
            shows H>=6, C<=2, D<=2
     3S     Six or more spades: to play
            shows S>=6, C<=2, D<=2

   after (any auction)
     when asked nt_pc(x), rho.last=P | rho.last=X
     P      Support for {x}: to play
            shows x>=3
     2D     Which is your other suit?  [alert]
            shows x<=2
            when  x is C
     2H     Which is your other suit? (pass or correct)  [alert]
            shows x<=2
            when  x is D

   after (any auction)
     when asked nt_other, rho.last=P | rho.last=X
     P      My other suit is diamonds
            shows D>=4
            when  partner.last=2D
     P      My other suit is hearts
            shows H>=4
            when  partner.last=2H
     2H     My other suit is hearts
            shows H>=4
     2S     My other suit is spades
            shows S>=4

   after (any auction)
     when asked nt_one(x), rho.last=P | rho.last=X
     3{x}   Invitational raise
            shows x>=2, hcp=11..12
            when  x is H | x is S
     4{x}   Game in {x}
            shows x>=2, hcp>=13
            when  x is H | x is S
     P      Nothing more to say

   after (any auction)
     when asked nt_penalty, rho.last=P | rho.last=XX
     P      Sitting for the penalty double
     2C     Weak: five or more clubs
            shows C>=5, hcp<=4
     2D     Weak: five or more diamonds
            shows D>=5, hcp<=4
     2H     Weak: five or more hearts
            shows H>=5, hcp<=4
     2S     Weak: five or more spades
            shows S>=5, hcp<=4

== vs-preempts: Defence against preempts
   file: conventions/competitive/vs-preempts.bid
   needs: base

   after (2x)
     when x is not N, rho.hcp.max<=12
     X      Takeout: 12+ total points and the unbid suits, or 17+ with any shape
            shows hcp+length_points>=12, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C, x<=2) | (hcp>=17, x<=3)
     cheapest(S) Overcall: five or more spades, 12-16
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=12, hcp<=16
            when  x is not S, quality(S)>=good | top5(S)>=3 | S>=6 | hcp+length_points>=13, cheapest_rank(S)<=13 | hcp+length_points>=13
     cheapest(H) Overcall: five or more hearts, 12-16
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=12, hcp<=16
            when  x is not H, quality(H)>=good | top5(H)>=3 | H>=6 | hcp+length_points>=13, cheapest_rank(H)<=13 | hcp+length_points>=13
     cheapest(D) Overcall: five or more diamonds, 12-16
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=12, hcp<=16
            when  x is not D, quality(D)>=good | top5(D)>=3 | D>=6 | hcp+length_points>=13, cheapest_rank(D)<=13 | hcp+length_points>=13
     cheapest(C) Overcall: five or more clubs, 12-16
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=12, hcp<=16
            when  x is not C, quality(C)>=good | top5(C)>=3 | C>=6 | hcp+length_points>=13, cheapest_rank(C)<=13 | hcp+length_points>=13
     jump(S) Strong jump overcall: six or more spades, 15-16
            shows S>=6, hcp=15..16
            when  x is not S
     jump(H) Strong jump overcall: six or more hearts, 15-16
            shows H>=6, H>S, hcp=15..16
            when  x is not H, x is not S
     cheapest(N) 15-17 balanced, {x} stopped, no five-card major
            shows balanced, hcp=15..17, S<=4, H<=4
            when  stop(x)
     4S     Seven or more spades: game
            shows S>=7, hcp+length_points>=13
            when  x is not S
     4H     Seven or more hearts: game
            shows H>=7, H>S, hcp+length_points>=13
            when  x is not H
     P      Nothing to say over their weak two

   after (2x) P (P)
     when x is not N, lho.hcp.max<=12
     X      Reopening double: 12+, short in {x}, the unbid suits
            shows hcp+length_points>=12, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C, x<=2) | (hcp>=17, x<=3)
     cheapest(S) Balancing: five or more spades
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=9, hcp<=16
            when  x is not S, cheapest_rank(S)<=13 | hcp+length_points>=11
     cheapest(H) Balancing: five or more hearts
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=9, hcp<=16
            when  x is not H, cheapest_rank(H)<=13 | hcp+length_points>=11
     cheapest(D) Balancing: five or more diamonds
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=9, hcp<=16
            when  x is not D, cheapest_rank(D)<=13 | hcp+length_points>=11
     cheapest(C) Balancing: five or more clubs
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=9, hcp<=16
            when  x is not C, cheapest_rank(C)<=13 | hcp+length_points>=11
     jump(S) Six or more spades, 15-16
            shows S>=6, hcp=15..16
            when  x is not S, cheapest_rank(S)<=13
     jump(H) Six or more hearts, 15-16
            shows H>=6, H>S, hcp=15..16
            when  x is not H, cheapest_rank(H)<=13
     cheapest(N) 16-18 balanced, {x} stopped
            shows balanced, hcp=16..18, S<=4, H<=4
            when  stop(x)
     P      Nothing to reopen with

   after (3x)
     when x is not N, rho.hcp.max<=12
     X      Takeout: 12+, short in {x}, the unbid suits, or 17+
            shows hcp+length_points>=12, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C, x<=2) | (hcp>=17, x<=3)
     cheapest(S) Overcall: five or more spades
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=12, hcp<=17
            when  x is not S, quality(S)>=good | top5(S)>=3 | S>=6 | hcp+length_points>=14, cheapest_rank(S)<=18 | hcp+length_points>=14
     cheapest(H) Overcall: five or more hearts
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=12, hcp<=17
            when  x is not H, quality(H)>=good | top5(H)>=3 | H>=6 | hcp+length_points>=14, cheapest_rank(H)<=18 | hcp+length_points>=14
     cheapest(D) Overcall: five or more diamonds
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=12, hcp<=17
            when  x is not D, quality(D)>=good | top5(D)>=3 | D>=6 | hcp+length_points>=14, cheapest_rank(D)<=18 | hcp+length_points>=14
     cheapest(C) Overcall: five or more clubs
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=12, hcp<=17
            when  x is not C, quality(C)>=good | top5(C)>=3 | C>=6 | hcp+length_points>=14, cheapest_rank(C)<=18 | hcp+length_points>=14
     3N     17-21 with {x} stopped
            shows hcp=17..21, S<=4, H<=4
            when  stop(x)
     4S     Seven or more spades: game
            shows S>=7, hcp+length_points>=13
            when  x is not S
     4H     Seven or more hearts: game
            shows H>=7, H>S, hcp+length_points>=13
            when  x is not H
     P      Nothing to say over their preempt

   after (3x) P (P)
     when x is not N, lho.hcp.max<=12
     X      Reopening double: 12+, short in {x}, the unbid suits
            shows hcp+length_points>=12, (S>=3 | x is S, H>=3 | x is H, D>=3 | x is D, C>=3 | x is C, x<=1) | (hcp>=17, x<=3)
     cheapest(S) Balancing: five or more spades
            shows S>=5, S>=H, S>=D, S>=C, hcp+length_points>=11, hcp<=17
            when  x is not S, cheapest_rank(S)<=18 | hcp+length_points>=13
     cheapest(H) Balancing: five or more hearts
            shows H>=5, H>S, H>=D, H>=C, hcp+length_points>=11, hcp<=17
            when  x is not H, cheapest_rank(H)<=18 | hcp+length_points>=13
     cheapest(D) Balancing: five or more diamonds
            shows D>=5, D>S, D>H, D>=C, hcp+length_points>=11, hcp<=17
            when  x is not D, cheapest_rank(D)<=18 | hcp+length_points>=13
     cheapest(C) Balancing: five or more clubs
            shows C>=5, C>S, C>H, C>D, hcp+length_points>=11, hcp<=17
            when  x is not C, cheapest_rank(C)<=18 | hcp+length_points>=13
     3N     17-20 with {x} stopped
            shows hcp=17..20, S<=4, H<=4
            when  stop(x)
     P      Nothing to reopen with

   after (4x)
     when x is H, rho.hcp.max<=12
     X      Takeout: 14+, short in hearts
            shows hcp+length_points>=14, x<=2, S>=3
     4S     Five or more spades, 14+
            shows S>=5, hcp+length_points>=14
     cheapest(D) Five or more diamonds, 16+
            shows D>=5, D>=C, hcp+length_points>=16
     cheapest(C) Five or more clubs, 16+
            shows C>=5, C>D, hcp+length_points>=16
     P      Nothing to say over their preempt

   after (4x)
     when x is S, rho.hcp.max<=12
     X      Values: 17+, for penalty
            shows hcp>=17, x>=2
     cheapest(D) Five or more diamonds, 16+
            shows D>=5, D>=C, hcp+length_points>=16
     cheapest(H) Five or more hearts, 16+
            shows H>=5, H>=D, H>=C, hcp+length_points>=16
     cheapest(C) Five or more clubs, 16+
            shows C>=5, C>D, hcp+length_points>=16
     P      Nothing to say over their preempt

   after (4x) P (P)
     when x is H, lho.hcp.max<=12
     X      Reopening double: 12+, no hearts
            shows hcp+length_points>=12, x<=1
     4S     Five or more spades, 13+
            shows S>=5, hcp+length_points>=13
     cheapest(D) Five or more diamonds, 15+
            shows D>=5, D>=C, hcp+length_points>=15
     cheapest(C) Five or more clubs, 15+
            shows C>=5, C>D, hcp+length_points>=15
     P      Nothing to reopen with

   after (4x) X (P) | (4x) P (P) X (P)
     when x is H | x is S
     4S     Five or more spades
            shows S>=5
            when  x is H
     P      Leaves the double in

   after (2x) X (P) | (3x) X (P) | (2x) P (P) X (P) | (3x) P (P) X (P)
     when x is not C
     P      Penalty: five of their suit with two top honours
            shows x>=5, quality(x)>=good | top5(x)>=3
     P      Penalty: four of their suit, a flat hand and 10+
            shows x=4, hcp>=10, stop(x), S<=4, H<=4, D<=4, C<=4
     cheapest(x) Cue bid: 13+, forcing to game  [alert]  [artificial]
            shows hcp+length_points>=13
     4S     Game: four or more spades, 11+
            shows S>=4, S>=H, hcp+length_points=11..12
            when  x is not S
     4H     Game: four or more hearts, 11+
            shows H>=4, H>S, hcp+length_points=11..12
            when  x is not H
     jump(S) Invitational: five or more spades, 8-10
            shows S>=5, S>=H, hcp+length_points=8..10
            when  x is not S, cheapest_rank(S)<=13
     jump(H) Invitational: five or more hearts, 8-10
            shows H>=5, H>S, hcp+length_points=8..10
            when  x is not H, cheapest_rank(H)<=13
     cheapest(N) 11-12 with {x} stopped
            shows hcp+length_points=11..12, S<=3 | x is S, H<=3 | x is H
            when  stop(x), cheapest_rank(x)<14
     3N     Game with {x} stopped, no four-card major
            shows hcp+length_points>=13 | (hcp+length_points>=11, cheapest_rank(x)>=14), S<=3 | x is S, H<=3 | x is H
            when  stop(x)
     cheapest(S) Four or more spades, 0-10
            shows S>=4, S>=H, hcp+length_points<=10
            when  x is not S
     cheapest(H) Four or more hearts, 0-10
            shows H>=4, H>S, hcp+length_points<=10
            when  x is not H
     cheapest(D) Four or more diamonds, 0-10, no four-card major
            shows D>=4, D>=C, hcp+length_points<=10, S<=3 | x is S, H<=3 | x is H
            when  x is not D
     cheapest(C) Four or more clubs, 0-10, no four-card major
            shows C>=4, C>D | x is D, hcp+length_points<=10, S<=3 | x is S, H<=3 | x is H
            when  x is not C
     cheapest(S) Our best suit: spades
            when  x is not S, S>=H, S>=D, S>=C
     cheapest(H) Our best suit: hearts
            when  x is not H, H>=D, H>=C
     cheapest(D) Our best suit: diamonds
            when  x is not D, D>=C
     cheapest(C) Our best suit: clubs
            when  x is not C

   after (2x) X (P) 2y (P) | (2x) X (P) 3y (P) | (3x) X (P) 3y (P) | (3x) X (P) 4y (P) | (2x) P (P) X (P) 2y (P) | (2x) P (P) X (P) 3y (P)
     when y is not x, x is not C
     P      Minimum double: partner has chosen
            shows hcp<=16
     4{y}   17+ with four: game in partner's major
            shows y>=4, hcp>=17
            when  y is H | y is S
     cheapest(y) 17+ with four: raise
            shows y>=4, hcp>=17
     3N     18+ with {x} stopped
            shows hcp>=18, stop(x)
     cheapest(S) 17+ and five or more spades
            shows S>=5, hcp>=17
            when  x is not S, y is not S
     cheapest(H) 17+ and five or more hearts
            shows H>=5, S<=4, hcp>=17
            when  x is not H, y is not H

   after (2x) X (P) 2N (P)
     when x is not C
     3N     Accepts the invitation: 14+
            shows hcp>=14
     P      Declines
            shows hcp<=13

   after (2x) 2y (P) | (2x) 3y (P) | (3x) 3y (P) | (3x) 4y (P) | (2x) P (P) 2y (P) | (2x) P (P) 3y (P)
     when y is not x, x is not C
     4{y}   Game: three-card support, 12+
            shows y>=3, hcp+length_points>=12
            when  y is H | y is S
     cheapest(y) Raise: three-card support, 8-11
            shows y>=3, hcp+length_points=8..11
     3N     Game: 12+ with {x} stopped
            shows hcp+length_points>=12, stop(x), y<=2
     P      Nothing to add

   after (2x) 2N (P)
     when x is not C
     3N     Game: 9+
            shows hcp>=9, S<=5, H<=5
     4S     Game: six or more spades, 8+
            shows S>=6, hcp>=8
            when  x is not S
     4H     Game: six or more hearts, 8+
            shows H>=6, hcp>=8
            when  x is not H
     P      No game
            shows hcp<=8

   after 2x (X) | 2x (2y) | 2x (3y) | 2x (2N) | 3x (X) | 3x (3y) | 3x (4y) | 3x (3N) | 4x (X) | 4x (4y) | 4x (5y)
     when x is not N
     P      They came in: nothing to add

   after 2x (X) P (*) | 2x (2y) P (*) | 2x (3y) P (*) | 2x (2N) P (*) | 3x (X) P (*) | 3x (3y) P (*) | 3x (4y) P (*) | 4x (X) P (*) | 4x (4y) P (*) | 4x (5y) P (*)
     when x is not N
     P      Partner passed: the preempt said it all

== drury: Drury: a passed hand's 2♣ limit raise
   file: conventions/majors/drury.bid
   needs: responses

   after 1M (P)
     when passed_hand, drury | reverse
     2C     Drury: 3+ {M}, limit-raise values  [alert]  [artificial]
            shows M>=3, tp(M)=10..12, hcp<=12
            when  !two_way
     2C     Drury: exactly three {M}, limit-raise values  [alert]  [artificial]
            shows M=3, tp(M)=10..12, hcp<=12
            when  two_way
     2D     Two-way Drury: 4+ {M}, limit-raise values  [alert]  [artificial]
            shows M>=4, tp(M)=10..12, hcp<=12
            when  two_way

   after 1M (X) | 1M (1x)
     when passed_hand, in_comp, drury | reverse
     2C     Drury: 3+ {M}, limit-raise values  [alert]  [artificial]
            shows M>=3, tp(M)=10..12, hcp<=12

   after (any auction)
     when asked drury(M), rho.last=P, partner.last=2C
     2M     Sub-minimum: no game opposite a limit raise
            shows tp(M)<=12
            when  reverse
     2D     Reverse Drury: a full opening, 13-14 support points  [alert]  [artificial]
            shows tp(M)=13..14
            when  reverse
     2D     Drury: a sub-minimum opening  [alert]  [artificial]
            shows tp(M)<=12
            when  !reverse
     2M     A full opening, 13-14 support points
            shows tp(M)=13..14
            when  !reverse
     4M     Game: 15+ support points
            shows tp(M)>=15

   after (any auction)
     when asked drury(M), rho.last=P, partner.last=2D
     2M     Sub-minimum: no game opposite a four-card limit raise
            shows tp(M)<=12
     4M     Game opposite a four-card limit raise
            shows tp(M)>=13

   after (any auction)
     when answered drury(M), partner.last=2{M}, reverse
     P      Partner is sub-minimum: play 2{M}

   after (any auction)
     when answered drury(M), partner.last=2D, !reverse
     2M     Partner is sub-minimum: play 2{M}

   after (any auction)
     when answered drury(M), partner.last=2D, reverse
     4M     Game facing a full opening
            shows tp(M)>=12 | (tp(M)=11, M>=4)
     2M     Sign off facing a full opening

   after (any auction)
     when answered drury(M), partner.last=2{M}, !reverse
     4M     Game facing a full opening
            shows tp(M)>=12 | (tp(M)=11, M>=4)
     P      No game facing a full opening

   after 1M (P) 2C (P) 2D (P) 2M (P)
     P      Responder signs off

== impossible-2s: Impossible 2♠
   file: conventions/majors/impossible-2s.bid
   card: major_openings.impossible_2s.play
   needs: responder-rebids

   after 1H (P) 1N (P) 2m (P)
     2S     Impossible 2♠: good raise of {m}, 4+ {m}, 11+ points  [alert]  [artificial]
            shows m>=4, H<=2, points>=11

   after 1H (P) 1N (P) 2C (P) 2S (P)
     3C     Minimum: no game opposite the good raise
            shows tp(C)<=14
     3N     Game: 15+, spades and diamonds stopped
            shows tp(C)>=15, stop(S), stop(D)
     3D     Diamond stopper, not spades: looking for 3NT
            shows tp(C)>=15, stop(D), !stop(S)
     3S     Spade stopper, not diamonds: looking for 3NT
            shows tp(C)>=15, stop(S), !stop(D)
     5C     Game in clubs: 15+, neither suit stopped
            shows tp(C)>=15

   after 1H (P) 1N (P) 2D (P) 2S (P)
     3D     Minimum: no game opposite the good raise
            shows tp(D)<=14
     3N     Game: 15+, spades and clubs stopped
            shows tp(D)>=15, stop(S), stop(C)
     3C     Club stopper, not spades: looking for 3NT
            shows tp(D)>=15, stop(C), !stop(S)
     3S     Spade stopper, not clubs: looking for 3NT
            shows tp(D)>=15, stop(S), !stop(C)
     5D     Game in diamonds: 15+, neither suit stopped
            shows tp(D)>=15

   after 1H (P) 1N (P) 2m (P) 2S (P) 3m (P)
     P      Opener is minimum: play three of {m}

   after 1H (P) 1N (P) 2m (P) 2S (P) 3N (P) | 1H (P) 1N (P) 2m (P) 2S (P) 5m (P)
     P      Opener has placed the contract

== jacoby-2nt: Jacoby 2NT
   file: conventions/majors/jacoby-2nt.bid
   card: major_openings.jacoby_2nt.play
   needs: base

   after 1M (P)
     when !passed_hand
     2N     Jacoby 2NT: 4+ {M}, game forcing  [alert]  [artificial]
            shows M>=4, tp(M)>=13

   after 1M (P) 2N (P)
     3x     Singleton or void in {x}  [artificial]
            shows x<=1
            when  x is not M
     4x     Good 5-card side suit
            shows x>=5, quality(x)>=good
            when  x is not M
     3M     18+, no shortness
            shows hcp>=18, shortest>=2
     3N     15-17, no shortness
            shows hcp=15..17, shortest>=2
     4M     Minimum, no shortness
            shows hcp<=14, shortest>=2

== splinters: Splinters over 1♥ / 1♠
   file: conventions/majors/splinters.bid
   card: major_openings.splinters.play
   needs: responses

   after 1H (P)
     when by_resp
     3S     Splinter: 4+ hearts, game values, at most one spade  [alert]  [artificial]
            shows H>=4, S<=1, !has(A,S), !has(K,S), !has(Q,S), !has(J,S), tp(H)>=15, hcp=12..15 | (hcp=11, S=0)
            when  !passed_hand
     3S     Splinter by a passed hand: 4+ hearts, 10-11, at most one spade  [alert]  [artificial]
            shows H>=4, S<=1, !has(A,S), !has(K,S), !has(Q,S), !has(J,S), hcp=10..11, tp(H)>=13
            when  passed_hand

   after 1M (P)
     when by_resp
     4x     Splinter: 4+ {M}, game values, at most one {x}  [alert]  [artificial]
            shows M>=4, x<=1, !has(A,x), !has(K,x), !has(Q,x), !has(J,x), tp(M)>=15, hcp=12..15 | (hcp=11, x=0)
            when  x is not M, M is S | x is not S, !passed_hand
     4x     Splinter by a passed hand: 4+ {M}, 10-11, at most one {x}  [alert]  [artificial]
            shows M>=4, x<=1, !has(A,x), !has(K,x), !has(Q,x), !has(J,x), hcp=10..11, tp(M)>=13
            when  x is not M, M is S | x is not S, passed_hand

   after 1m (P) 1H (P)
     when by_open
     3S     Splinter: 4 hearts, 17-21, at most one spade  [alert]  [artificial]
            shows H>=4, S<=1, !has(A,S), !has(K,S), !has(Q,S), !has(J,S), tp(H)>=19, hcp=17..21 | (hcp=16, S=0)

   after 1x (P) 1M (P)
     when by_open
     4y     Splinter: 4 {M}, 17-21, at most one {y}  [alert]  [artificial]
            shows M>=4, y<=1, !has(A,y), !has(K,y), !has(Q,y), !has(J,y), tp(M)>=19, hcp=17..21 | (hcp=16, y=0)
            when  y is not M, y is not x, M is S | y is not S

   after 1H (P) 3S (P)
     4H     Game: no slam interest
            shows !((!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20))
     cheapest(C) Slam try: control bid in ♣  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20)
            when  cue, H is not C, S is not C, under_game(C), has(A,C) | C<=0 | (style is first_or_second_round, has(K,C) | C<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(D) Slam try: control bid in ♦  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20)
            when  cue, H is not D, S is not D, under_game(D), has(A,D) | D<=0 | (style is first_or_second_round, has(K,D) | D<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(H) Slam try: control bid in ♥  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20)
            when  cue, H is not H, S is not H, under_game(H), has(A,H) | H<=0 | (style is first_or_second_round, has(K,H) | H<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(S) Slam try: control bid in ♠  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20)
            when  cue, H is not S, S is not S, under_game(S), has(A,S) | S<=0 | (style is first_or_second_round, has(K,S) | S<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     4N     Keycard ask in {trump}  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=17) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=18) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=19) | (has(K,S), has(Q,S), has(J,S), tp(H)>=20)
            when  k1430 | k0314

   after 1M (P) 4x (P)
     when x is not M, M is S | x is not S
     4M     Game: no slam interest
            shows !((!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20))
     cheapest(C) Slam try: control bid in ♣  [alert]  [artificial]
            shows (!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20)
            when  cue, M is not C, x is not C, under_game(C), has(A,C) | C<=0 | (style is first_or_second_round, has(K,C) | C<=1), (M is not C, x is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, x is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, x is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, x is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(D) Slam try: control bid in ♦  [alert]  [artificial]
            shows (!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20)
            when  cue, M is not D, x is not D, under_game(D), has(A,D) | D<=0 | (style is first_or_second_round, has(K,D) | D<=1), (M is not C, x is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, x is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, x is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, x is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(H) Slam try: control bid in ♥  [alert]  [artificial]
            shows (!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20)
            when  cue, M is not H, x is not H, under_game(H), has(A,H) | H<=0 | (style is first_or_second_round, has(K,H) | H<=1), (M is not C, x is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, x is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, x is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, x is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(S) Slam try: control bid in ♠  [alert]  [artificial]
            shows (!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20)
            when  cue, M is not S, x is not S, under_game(S), has(A,S) | S<=0 | (style is first_or_second_round, has(K,S) | S<=1), (M is not C, x is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, x is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, x is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, x is not S, S>=2, !has(A,S), !has(K,S))
     4N     Keycard ask in {trump}  [artificial]
            shows (!has(K,x), !has(Q,x), !has(J,x), tp(M)>=14) | (!has(K,x), !has(Q,x), has(J,x), tp(M)>=15) | (!has(K,x), has(Q,x), !has(J,x), tp(M)>=16) | (!has(K,x), has(Q,x), has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), !has(J,x), tp(M)>=17) | (has(K,x), !has(Q,x), has(J,x), tp(M)>=18) | (has(K,x), has(Q,x), !has(J,x), tp(M)>=19) | (has(K,x), has(Q,x), has(J,x), tp(M)>=20)
            when  k1430 | k0314

   after 1m (P) 1H (P) 3S (P)
     when by_open
     4H     Game: no slam interest
            shows !((!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17))
     cheapest(C) Slam try: control bid in ♣  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17)
            when  cue, H is not C, S is not C, under_game(C), has(A,C) | C<=0 | (style is first_or_second_round, has(K,C) | C<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(D) Slam try: control bid in ♦  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17)
            when  cue, H is not D, S is not D, under_game(D), has(A,D) | D<=0 | (style is first_or_second_round, has(K,D) | D<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(H) Slam try: control bid in ♥  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17)
            when  cue, H is not H, S is not H, under_game(H), has(A,H) | H<=0 | (style is first_or_second_round, has(K,H) | H<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(S) Slam try: control bid in ♠  [alert]  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17)
            when  cue, H is not S, S is not S, under_game(S), has(A,S) | S<=0 | (style is first_or_second_round, has(K,S) | S<=1), (H is not C, S is not C, C>=2, !has(A,C), !has(K,C)) | (H is not D, S is not D, D>=2, !has(A,D), !has(K,D)) | (H is not H, S is not H, H>=2, !has(A,H), !has(K,H)) | (H is not S, S is not S, S>=2, !has(A,S), !has(K,S))
     4N     Keycard ask in {trump}  [artificial]
            shows (!has(K,S), !has(Q,S), !has(J,S), tp(H)>=11) | (!has(K,S), !has(Q,S), has(J,S), tp(H)>=12) | (!has(K,S), has(Q,S), !has(J,S), tp(H)>=13) | (!has(K,S), has(Q,S), has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), !has(J,S), tp(H)>=14) | (has(K,S), !has(Q,S), has(J,S), tp(H)>=15) | (has(K,S), has(Q,S), !has(J,S), tp(H)>=16) | (has(K,S), has(Q,S), has(J,S), tp(H)>=17)
            when  k1430 | k0314

   after 1x (P) 1M (P) 4y (P)
     when by_open, y is not M, y is not x, M is S | y is not S
     4M     Game: no slam interest
            shows !((!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17))
     cheapest(C) Slam try: control bid in ♣  [alert]  [artificial]
            shows (!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17)
            when  cue, M is not C, y is not C, under_game(C), has(A,C) | C<=0 | (style is first_or_second_round, has(K,C) | C<=1), (M is not C, y is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, y is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, y is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, y is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(D) Slam try: control bid in ♦  [alert]  [artificial]
            shows (!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17)
            when  cue, M is not D, y is not D, under_game(D), has(A,D) | D<=0 | (style is first_or_second_round, has(K,D) | D<=1), (M is not C, y is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, y is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, y is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, y is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(H) Slam try: control bid in ♥  [alert]  [artificial]
            shows (!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17)
            when  cue, M is not H, y is not H, under_game(H), has(A,H) | H<=0 | (style is first_or_second_round, has(K,H) | H<=1), (M is not C, y is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, y is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, y is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, y is not S, S>=2, !has(A,S), !has(K,S))
     cheapest(S) Slam try: control bid in ♠  [alert]  [artificial]
            shows (!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17)
            when  cue, M is not S, y is not S, under_game(S), has(A,S) | S<=0 | (style is first_or_second_round, has(K,S) | S<=1), (M is not C, y is not C, C>=2, !has(A,C), !has(K,C)) | (M is not D, y is not D, D>=2, !has(A,D), !has(K,D)) | (M is not H, y is not H, H>=2, !has(A,H), !has(K,H)) | (M is not S, y is not S, S>=2, !has(A,S), !has(K,S))
     4N     Keycard ask in {trump}  [artificial]
            shows (!has(K,y), !has(Q,y), !has(J,y), tp(M)>=11) | (!has(K,y), !has(Q,y), has(J,y), tp(M)>=12) | (!has(K,y), has(Q,y), !has(J,y), tp(M)>=13) | (!has(K,y), has(Q,y), has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), !has(J,y), tp(M)>=14) | (has(K,y), !has(Q,y), has(J,y), tp(M)>=15) | (has(K,y), has(Q,y), !has(J,y), tp(M)>=16) | (has(K,y), has(Q,y), has(J,y), tp(M)>=17)
            when  k1430 | k0314

== choice-of-games: Choosing between 3NT and a major-suit game
   file: conventions/notrump/choice-of-games.bid
   needs: notrump-base

   after (any auction)
     when asked choice
     4H     Corrects to the heart fit
            shows H>=8-partner.H.min
            when  partner.H>=4
     4S     Corrects to the spade fit
            shows S>=8-partner.S.min
            when  partner.S>=4
     P      Plays 3NT

== jacoby-transfers: Jacoby Transfers
   file: conventions/notrump/jacoby-transfers.bid
   card: notrump.transfers.jacoby
   needs: notrump-base

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on
     2D     Transfer to hearts  [announce: Transfer]  [artificial]
            shows H>=5
     2H     Transfer to spades  [announce: Transfer]  [artificial]
            shows S>=5
     2H     Transfer to spades, 5-5 in the majors  [announce: Transfer]  [artificial]
            shows S>=5, H>=5
            when  style is bba

   after 1N (P) 2D (P) | (1x) 1N (P) 2D (P) | (1x) P (P) 1N (P) 2D (P) | (1x) 1N (X) 2D (P) | (1x) P (P) 1N (X) 2D (P)
     2H     Completes transfer

   after 1N (P) 2H (P) | (1x) 1N (P) 2H (P) | (1x) P (P) 1N (P) 2H (P) | (1x) 1N (X) 2H (P) | (1x) P (P) 1N (X) 2H (P)
     2S     Completes transfer

   after (any auction)
     when answered transfer(M)
     3M     Sign off in the known fit
            shows suit_strength=signoff
            when  partner.M>=4
     4M     Game in the known fit, opposite a maximum
            shows suit_strength=invite
            when  partner.M>=4
     P      Weak: play here ({signoff} total points)
            shows strength=signoff
            when  maybe partner.M<=3 | partner.last=3{M}
     2N     Invitational: {invite} total points, exactly 5 {M}
            shows M=5, balanced | shortest>=2, strength=invite
     3M     Invitational: {invite} total points, 6+ {M}
            shows M>=6, suit_strength=invite
     3N     Game: {game} total points, 5 {M}: choose the game
            shows M=5, balanced, strength=game
            when  maybe partner.M<=2
     4M     Game: {game} total points, 6+ {M}
            shows M>=6, suit_strength=game
            when  !texas
     4M     Mild slam interest, 6+ {M}
            shows M>=6, suit_points>=31-partner.points.max, suit_points<=32-partner.points.min
            when  texas
     4M     Game: {game} total points, 6+ {M}
            shows M>=6, suit_strength=game
            when  texas
     4M     Game in the known fit
            shows suit_strength=game
            when  partner.M>=3
     3m     Second suit, game forcing
            shows m>=4, strength>=game
     4N     Quantitative, 5 {M}
            shows M=5, balanced, strength=slam_invite
     6N     Slam: {slam} total points, 5 {M}
            shows M=5, balanced, strength=slam
     P      Weak in HCP: play here
            shows M=5, strength=invite, hcp<=24-partner.hcp.max
            when  maybe partner.M<=3 | partner.last=3{M}
     2N     Invitational, exactly 5 {M}, a singleton
            shows M=5, strength=invite, hcp>=25-partner.hcp.max

   after (any auction)
     when asked invite(M)
     4M     Accepts, in the fit
            shows M>=8-partner.M.min, points>=24-partner.points.min
     3N     Accepts, no fit
            shows M<8-partner.M.min, strength>=game
     3M     Declines, in the fit
            shows M>=8-partner.M.min, points<=23-partner.points.min
     P      Declines
            shows strength<=invite, M<8-partner.M.min | points<=23-partner.points.min

   after (any auction)
     when answered invite(M), partner.last=3{M}
     P      Partner declined: play three of the major

   after (any auction)
     when asked quant_major(M)
     6M     Accepts, in the fit
            shows M>=3, points>=32-partner.points.min
     6N     Accepts, no fit
            shows M<=2, points>=32-partner.points.min
     P      Declines
            shows points<=31-partner.points.min

   after (any auction)
     when asked new_suit(M)
     3M     3+ {M}: support
            shows M>=3
     3N     No fit: 2 {M}
            shows M<=2

   after (any auction)
     when asked slam_try(M)
     4N     Keycard ask: good fit and a maximum  [artificial]
            shows M>=3, points>=31-partner.suit_points.min
     P      No slam: plays game

   after 1N (P) 2D (P) 2H (P)
     2S     5 hearts and 4 spades, invitational, not forcing
            shows H=5, S=4, hcp>=24-partner.hcp.max, hcp<=24-partner.hcp.min

   after 1N (P) 2D (P) 2H (P) 2S (P)
     4H     Accepts, in the heart fit
            shows H>=4 | (H=3, points>=24-partner.hcp.min)
     3H     Declines, in the heart fit
            shows H=3, points<=23-partner.hcp.min
     4S     Accepts, in the spade fit
            shows S>=4, H<=2, points>=23-partner.hcp.min
     3S     Declines, in the spade fit
            shows S>=4, H<=2, points<=22-partner.hcp.min
     P      No eight-card fit: play 2S
            shows H<=2, S<=3

   after 1N (P) 2D (P) 2H (P) 2S (P) 3H (P)
     4H     Game: the top of the invitation
            shows hcp>=25-partner.hcp.max
     P      Minimum: play 3H
            shows hcp<=24-partner.hcp.max

   after 1N (P) 2D (P) 2H (P) 2S (P) 3S (P)
     4S     Game: the top of the invitation
            shows hcp>=25-partner.hcp.max
     P      Minimum: play 3S
            shows hcp<=24-partner.hcp.max

   after 1N (X)
     when vs_double
     2H     Transfer to spades  [announce: Transfer]  [artificial]
            shows S>=5
            when  S>=H
     2D     Transfer to hearts  [announce: Transfer]  [artificial]
            shows H>=5
            when  H>S

   after 1N (2C)
     when vs_2c
     2H     Transfer to spades  [announce: Transfer]  [artificial]
            shows S>=5, hcp>=5
            when  S>=H
     2D     Transfer to hearts  [announce: Transfer]  [artificial]
            shows H>=5, hcp>=5
            when  H>S

   after 1N (X) 2D (P)
     when vs_double
     2H     Completes transfer

   after 1N (X) 2H (P)
     when vs_double
     2S     Completes transfer

   after 1N (2C) 2D (P)
     when vs_2c
     2H     Completes transfer

   after 1N (2C) 2H (P)
     when vs_2c
     2S     Completes transfer

== minor-transfers: Minor-suit responses to 1NT
   file: conventions/notrump/minor-transfers.bid
   needs: notrump-base

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on, style is relay
     2S     Relay to 3♣: a weak hand with a long minor  [alert]  [artificial]
            shows C>=6 | D>=6, H<=4, S<=4, strength=signoff

   after 1N (P) 2S (P) | (1x) 1N (P) 2S (P) | (1x) P (P) 1N (P) 2S (P) | (1x) 1N (X) 2S (P) | (1x) P (P) 1N (X) 2S (P)
     when style is relay
     3C     Completes the relay  [artificial]

   after (any auction)
     when answered relay
     P      Clubs: play here
            shows C>=6
     3D     Diamonds: play here
            shows D>=6

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on, style is four_way | style is four_way_reversed
     2S     Transfer to clubs  [alert]  [artificial]
            shows C>=6, H<=4, S<=4, strength<=invite
     2N     Transfer to diamonds  [alert]  [artificial]
            shows D>=6, H<=4, S<=4, strength<=invite

   after 1N (P) 2S (P) | (1x) 1N (P) 2S (P) | (1x) P (P) 1N (P) 2S (P) | (1x) 1N (X) 2S (P) | (1x) P (P) 1N (X) 2S (P)
     when style is four_way
     2N     Good club support (Kxx or better)  [alert]  [artificial]
            shows C>=3, has(A,C) | has(K,C)
     3C     No good club support

   after 1N (P) 2N (P) | (1x) 1N (P) 2N (P) | (1x) P (P) 1N (P) 2N (P) | (1x) 1N (X) 2N (P) | (1x) P (P) 1N (X) 2N (P)
     when style is four_way
     3C     Good diamond support (Kxx or better)  [alert]  [artificial]
            shows D>=3, has(A,D) | has(K,D)
     3D     No good diamond support

   after 1N (P) 2S (P) | (1x) 1N (P) 2S (P) | (1x) P (P) 1N (P) 2S (P) | (1x) 1N (X) 2S (P) | (1x) P (P) 1N (X) 2S (P)
     when style is four_way_reversed
     3C     Good club support (Kxx or better)
            shows C>=3, has(A,C) | has(K,C)
     2N     No good club support  [alert]  [artificial]

   after 1N (P) 2N (P) | (1x) 1N (P) 2N (P) | (1x) P (P) 1N (P) 2N (P) | (1x) 1N (X) 2N (P) | (1x) P (P) 1N (X) 2N (P)
     when style is four_way_reversed
     3D     Good diamond support (Kxx or better)
            shows D>=3, has(A,D) | has(K,D)
     3C     No good diamond support  [alert]  [artificial]

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on, style is bba
     2S     Transfer to clubs  [alert]  [artificial]
            shows C>=6, H<=4, S<=4, strength<=invite
     3C     Transfer to diamonds  [alert]  [artificial]
            shows D>=6, H<=4, S<=4, strength<=invite

   after 1N (P) 2S (P) | (1x) 1N (P) 2S (P) | (1x) P (P) 1N (P) 2S (P) | (1x) 1N (X) 2S (P) | (1x) P (P) 1N (X) 2S (P)
     when style is bba
     3C     Completes the transfer

   after 1N (P) 3C (P) | (1x) 1N (P) 3C (P) | (1x) P (P) 1N (P) 3C (P) | (1x) 1N (X) 3C (P) | (1x) P (P) 1N (X) 3C (P)
     when style is bba
     3D     Completes the transfer

   after (any auction)
     when answered transfer(m)
     P      Play here
            shows strength<=invite
            when  partner.last=3{m}
     3m     Sign off in {m}
            shows strength<=invite
     3N     To play: {game} total points
            shows strength>=game
     3N     To play: the {m} suit should run
            shows strength=invite
            when  partner.m>=3

   after 1N (2C)
     when vs_2c, style is relay
     2S     Relay to 3♣: a weak hand with a long minor  [alert]  [artificial]
            shows C>=6 | D>=6, H<=4, S<=4, hcp>=5, strength=signoff

   after 1N (2C) 2S (P)
     when vs_2c, style is relay
     3C     Completes the relay  [artificial]

   after 1N (2C)
     when vs_2c, style is four_way | style is four_way_reversed
     2S     Transfer to clubs  [alert]  [artificial]
            shows C>=6, H<=4, S<=4, hcp>=5, strength<=invite
     2N     Transfer to diamonds  [alert]  [artificial]
            shows D>=6, H<=4, S<=4, hcp>=5, strength<=invite

   after 1N (2C)
     when vs_2c, style is bba
     2S     Transfer to clubs  [alert]  [artificial]
            shows C>=6, H<=4, S<=4, hcp>=5, strength<=invite
     3C     Transfer to diamonds  [alert]  [artificial]
            shows D>=6, H<=4, S<=4, hcp>=5, strength<=invite

   after 1N (2C) 2S (P)
     when vs_2c, style is bba
     3C     Completes the transfer

   after 1N (2C) 3C (P)
     when vs_2c, style is bba
     3D     Completes the transfer

== nt-interference: Our 1NT when RHO acts
   file: conventions/notrump/nt-interference.bid
   needs: notrump-base

   after 1N (X)
     when vs_double
     XX     We own the hand: 6+ HCP and no suit to show
            shows hcp>=6
     P      Not enough to act over the double
            shows hcp<=5

   after 1N (X)
     when !vs_double
     2H     Weak: five or more hearts, running from the double
            shows H>=5, H>=S, hcp<=4
     2S     Weak: five or more spades, running from the double
            shows S>=5, hcp<=4
     2C     Weak: six or more clubs, running from the double
            shows C>=6, H<=4, S<=4, hcp<=4
     2D     Weak: six or more diamonds, running from the double
            shows D>=6, H<=4, S<=4, hcp<=4
     P      Sitting for the double

   after 1N (X) 2y (P)
     when !vs_double, y is not N
     P      Partner's escape: to play

   after 1N (X) XX (P)
     P      Playing 1NT redoubled

   after 1N (X) XX (*)
     when !rho.last=P
     P      Partner redoubled: his decision

   after 1N (X) XX (2y) P (P)
     X      Penalty
            shows y>=4 | hcp>=9
     P      Nothing more

   after 1N (2y)
     when y is not C, rho.y>=4, maybe rho.H<=3 | maybe rho.S<=3
     X      Negative double: four cards in an unbid major, 5+ HCP  [alert]  [artificial]
            shows hcp>=5, S>=4 | H>=4
            when  y is D, S<=4, H<=4
     X      Negative double: four hearts (five with less than 10), 5+ HCP  [alert]  [artificial]
            shows hcp>=5, H=4 | (H=5, points<=9)
            when  y is S
     X      Negative double: four spades, 5+ HCP  [alert]  [artificial]
            shows hcp>=5, S=4
            when  y is H
     2H     Natural, to play: five or more hearts
            shows H>=5, hcp>=4, points<=9
            when  y is D
     2S     Natural, to play: five or more spades
            shows S>=5, hcp>=4, points<=9
            when  y is D | y is H
     cheapest(C) Natural, forcing to game: five or more clubs
            shows C>=5, points>=10
     cheapest(D) Natural, forcing to game: five or more diamonds
            shows D>=5, points>=10
            when  y is not D
     3H     Natural, forcing to game: five or more hearts
            shows H>=5, points>=10
            when  y is S
     4H     Game: six or more hearts
            shows H>=6, hcp>=10
            when  y is not H
     4S     Game: six or more spades
            shows S>=6, hcp>=10
            when  y is not S
     2N     Invitational: 8-9 HCP, a stopper in {y}
            shows hcp=8..9, stop(y)
     3N     Game: 10+ HCP
            shows hcp>=10
     P      Nothing to say over their overcall

   after 1N (2y) X (P)
     when y is not C, lho.y>=4, maybe lho.H<=3 | maybe lho.S<=3
     cheapest(H) Four hearts for partner's double
            shows H>=4
            when  y is not H
     cheapest(S) Four spades for partner's double
            shows S>=4
            when  y is not S
     2N     No four-card major, a stopper in {y}
            shows stop(y)
     P      Four of their suit: defends
            shows y>=4
     cheapest(C) No major, no stopper: four clubs
            shows C>=4
     cheapest(D) No major, no stopper: four diamonds
            shows D>=4
            when  y is not D
     cheapest(N) Nothing better to say

   after 1N (2y) X (P) 2M (P) | 1N (2y) X (P) 3M (P)
     when y is not C, rho.y>=4, maybe rho.H<=3 | maybe rho.S<=3
     4M     Game in the fit: 10+
            shows M>=4, points>=10
     3M     Invitational in the fit: 8-9
            shows M>=4, points=8..9
            when  partner.last=2M
     3N     Game, no fit: 10+
            shows M<=3, points>=10
     P      No game
            shows points<=9

   after 1N (2y) X (P) 2M (P) 3M (P)
     when y is not C, lho.y>=4, maybe lho.H<=3 | maybe lho.S<=3
     4M     Accepts the invitation: a maximum
            shows hcp>=16
     P      Declines: a minimum
            shows hcp<=15

   after 1N (2y) X (P) 2N (P) | 1N (2y) X (P) 3C (P) | 1N (2y) X (P) 3D (P)
     when y is not C, rho.y>=4, maybe rho.H<=3 | maybe rho.S<=3
     3N     Game: 10+
            shows points>=10
     P      No game
            shows points<=9

   after 1N (2y) 3z (P)
     when y is not C, z is not y, z is not N, lho.y>=4, maybe lho.H<=3 | maybe lho.S<=3
     4{z}   Three-card support: game in the major
            shows z>=3
            when  z is H | z is S
     3N     Game in notrump

   after 1N (2y) 2z (P)
     when y is not C, z is not N, lho.y>=4, maybe lho.H<=3 | maybe lho.S<=3
     P      Partner's suit, to play

   after 1N (2y) 2N (P)
     when y is not C, lho.y>=4, maybe lho.H<=3 | maybe lho.S<=3
     3N     Accepts: a maximum
            shows hcp>=16
     P      Declines: a minimum
            shows hcp<=15

   after 1N (2y)
     when y is not C, rho.H>=4, rho.S>=4
     X      Values: 8+ HCP, we can defend
            shows hcp>=8
     3C     Natural, forcing to game: five or more clubs
            shows C>=5, points>=10
     3D     Natural, forcing to game: five or more diamonds
            shows D>=5, points>=10
     3N     Game: 10+, both majors held
            shows hcp>=10, stop(H), stop(S)
     P      Nothing to say over their overcall

   after 1N (2y)
     when y is not C, maybe rho.y<=3, maybe rho.H<=3 | maybe rho.S<=3
     X      Values: 8+ HCP, we can defend
            shows hcp>=8
     3N     Game: 10+ HCP
            shows hcp>=10
     P      Nothing to say over their overcall

   after (any auction)
     when answered transfer(M), they.bid
     P      Nothing more to show

   after 1N (2C) X (2D)
     when vs_2c
     2H     4+ hearts
            shows H>=4
     2S     4 spades, not 4 hearts
            shows S>=4, H<=3
     X      Penalty: four or more diamonds, no major
            shows D>=4, H<=3, S<=3
     P      No 4-card major
            shows H<=3, S<=3

   after 1N (2y) 3z (P)
     when y is not C, lho.H>=4, lho.S>=4, z is C | z is D
     3N     Game in notrump

   after 1N (2y) X (P)
     when y is not C, (lho.H>=4, lho.S>=4) | (maybe lho.y<=3, maybe lho.H<=3 | maybe lho.S<=3)
     P      Defending their artificial overcall

   after 1N (2y) X (*)
     when !rho.last=P, !rho.last=X
     P      Nothing more to say

   after 1N (2y) X (2z)
     when y is not C, (lho.H>=4, lho.S>=4) | (maybe lho.y<=3, maybe lho.H<=3 | maybe lho.S<=3)
     X      Penalty: four or more {z}
            shows z>=4
     P      Nothing more to say

   after 1N (2y) X (2z) X (P)
     when y is not C, (rho.H>=4, rho.S>=4) | (maybe rho.y<=3, maybe rho.H<=3 | maybe rho.S<=3)
     P      Partner doubled for penalties: defend

   after 1N (2y) X (2z) P (P)
     when y is not C, (rho.H>=4, rho.S>=4) | (maybe rho.y<=3, maybe rho.H<=3 | maybe rho.S<=3)
     X      Penalty: four or more {z}
            shows z>=4
     3N     Game: 10+, {z} held
            shows hcp>=10, stop(z)
     P      Nothing more to say

   after 1N (2N)
     X      Values: 8+ HCP, we can defend
            shows hcp>=8
     3H     Natural, forcing to game: five or more hearts
            shows H>=5, points>=10
     3S     Natural, forcing to game: five or more spades
            shows S>=5, points>=10
     4H     Game: six or more hearts
            shows H>=6, hcp>=10
     4S     Game: six or more spades
            shows S>=6, hcp>=10
     3N     Game: 10+ HCP
            shows hcp>=10
     P      Nothing to say over their 2NT

   after 1N (2N) 3z (P)
     when z is H | z is S
     4{z}   Three-card support: game in the major
            shows z>=3
     3N     Game in notrump

   after 1N (2y) P (P)
     P      Partner passed: no game, let them play

   after 1N (3y)
     when y is not N
     3N     Game: 9+, a stopper in {y}
            shows hcp>=9, stop(y)
     4H     Game: five or more hearts, 9+
            shows H>=5, hcp>=9
            when  y is not H
     4S     Game: five or more spades, 9+
            shows S>=5, hcp>=9
            when  y is not S
     X      Takeout: 9+, no stopper in {y}
            shows hcp>=9, y<=2
     P      Nothing to say over their preempt

   after 1N (3y) X (P)
     when y is not N
     P      Four of their suit: defends
            shows y>=4
     3N     A stopper in {y}
            shows stop(y)
     cheapest(S) Four or more spades
            shows S>=4
            when  y is not S
     cheapest(H) Four or more hearts
            shows H>=4
            when  y is not H
     cheapest(D) Four or more diamonds
            shows D>=4
            when  y is not D
     cheapest(C) Four or more clubs
            shows C>=4
            when  y is not C
     3N     Nothing better: 3NT

   after 1N (3y) P (P)
     when y is not N
     P      Partner passed: let them play

== notrump-base: 1NT opening and natural responses
   file: conventions/notrump/one-nt.bid
   needs: base

   after (any auction)
     when opening
     1N     {nt_min}-{nt_max} HCP, balanced  [announce: {nt_min} to {nt_max}]
            shows hcp=nt_min..nt_max, balanced
     1N     {nt_min}-{nt_max} HCP, balanced (1 HCP light with extras)  [announce: {nt_min} to {nt_max}]
            shows hcp=nt_min-1, points>=nt_min, balanced
            when  one_less

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on
     6N     To play: slam values
            shows balanced, points>=32-partner.hcp.min, H<=4, S<=4
     4N     Quantitative: invites 6NT
            shows balanced, strength=slam_invite, points<=31-partner.hcp.min, H<=4, S<=4
            when  style is not bba
     3N     To play: {game} total points
            shows strength=game, H<=4, S<=4
            when  style is not bba
     2N     Invitational: {invite} total points
            shows strength=invite, H<=4, S<=4, C<=5, D<=5
            when  minors is not four_way, minors is not four_way_reversed, style is not bba
     2N     Invitational: {invite} total points, a long minor
            shows strength=invite, H<=4, S<=4, C>=6 | D>=6
            when  minors is relay | minors is none
     3C     Slam try: six or more clubs, or five and unbalanced
            shows C>=6 | (C>=5, !balanced), strength>=slam_invite, H<=4, S<=4
            when  !three_c_transfer, minors is not bba
     3D     Slam try: six or more diamonds, or five and unbalanced
            shows D>=6 | (D>=5, !balanced), strength>=slam_invite, H<=4, S<=4
            when  three_d is natural
     3N     No better call: {game} total points or more
            shows strength>=game
     P      No game interest: {signoff} total points
            shows strength=signoff
            when  style is not bba
     4N     Quantitative: invites 6NT
            shows balanced, strength=slam_invite, hcp>=33-partner.hcp.max, points<=31-partner.hcp.min, H<=4, S<=4
            when  style is bba
     3N     To play: {game} total points
            shows H<=4, S<=4, bba_nt_game_points>=10, strength<=game
            when  matchpoints, style is bba, partner.hcp.min>=15, partner.hcp.max<=17
     3N     To play: game values
            shows H<=4, S<=4, bba_nt_imp_game_points>=10, strength<=game
            when  imps, style is bba, partner.hcp.min>=15, partner.hcp.max<=17
     3N     To play: {game} total points (1NT not 15-17)
            shows H<=4, S<=4, (strength=game, C<=3 | D<=3 | C>=5 | D>=5) | (C=4, D=4, hcp>=25-partner.hcp.min, hcp<=32-partner.hcp.max)
            when  matchpoints, style is bba, partner.hcp.min<=14 | partner.hcp.max>=18
     3N     To play: game values
            shows H<=4, S<=4, (points>=24-partner.hcp.min, points<=32-partner.hcp.max, C<=3 | D<=3 | C>=5 | D>=5) | (C=4, D=4, hcp>=24-partner.hcp.min, hcp<=32-partner.hcp.max)
            when  imps, style is bba, partner.hcp.min<=14 | partner.hcp.max>=18
     2N     Invitational: {invite} total points
            shows H<=4, S<=4, C<=5, D<=5, (strength=invite, C<=3 | D<=3 | C>=5 | D>=5, !shape 4333 | hcp<=24-partner.hcp.max | hcp>=26-partner.hcp.max | has(T,S) | has(T,H) | has(T,D) | has(T,C)) | (C=4, D=4, hcp>=25-partner.hcp.max, hcp<=24-partner.hcp.min)
            when  minors is not four_way, minors is not four_way_reversed, matchpoints, style is bba, partner.hcp.min<=14 | partner.hcp.max>=18
     2N     Invitational
            shows H<=4, S<=4, C<=5, D<=5, (points>=25-partner.hcp.max, points<=23-partner.hcp.min, C<=3 | D<=3 | C>=5 | D>=5, !shape 4333 | hcp<=24-partner.hcp.max | hcp>=26-partner.hcp.max | has(T,S) | has(T,H) | has(T,D) | has(T,C)) | (C=4, D=4, hcp>=25-partner.hcp.max, hcp<=23-partner.hcp.min)
            when  minors is not four_way, minors is not four_way_reversed, imps, style is bba, partner.hcp.min<=14 | partner.hcp.max>=18
     P      No game interest
            shows (strength=signoff, C<=3 | D<=3 | C>=5 | D>=5) | (C=4, D=4, hcp<=24-partner.hcp.max) | (shape 4333, hcp>=25-partner.hcp.max, hcp<=25-partner.hcp.max, !has(T,S), !has(T,H), !has(T,D), !has(T,C))
            when  style is bba, partner.hcp.min<=14 | partner.hcp.max>=18
     2N     Invitational: {invite} total points
            shows H<=4, S<=4, C<=5, D<=5, bba_nt_points>=8, bba_nt_game_points<=9, points>=25-partner.hcp.max
            when  minors is not four_way, minors is not four_way_reversed, matchpoints, style is bba, partner.hcp.min>=15, partner.hcp.max<=17
     2N     Invitational
            shows H<=4, S<=4, C<=5, D<=5, bba_nt_imp_points>=8, bba_nt_imp_game_points<=9, points>=24-partner.hcp.max
            when  minors is not four_way, minors is not four_way_reversed, imps, style is bba, partner.hcp.min>=15, partner.hcp.max<=17
     P      No game interest
            shows bba_nt_points<=7
            when  matchpoints, style is bba, partner.hcp.min>=15, partner.hcp.max<=17
     P      No game interest
            shows bba_nt_imp_points<=7
            when  imps, style is bba, partner.hcp.min>=15, partner.hcp.max<=17

   after 1N (P) 3C (P)
     when !three_c_transfer, minors is not bba
     6C     Accepts: a club fit and a maximum
            shows C>=3, hcp>=17
     4C     A club fit, not a maximum: responder decides
            shows C>=3, hcp<=16
     3N     Declines: no club fit
            shows C<=2

   after 1N (P) 3D (P)
     when three_d is natural
     6D     Accepts: a diamond fit and a maximum
            shows D>=3, hcp>=17
     4D     A diamond fit, not a maximum: responder decides
            shows D>=3, hcp<=16
     3N     Declines: no diamond fit
            shows D<=2

   after 1N (P) 3C (P) 4C (P) | 1N (P) 3D (P) 4D (P)
     6{trump} Slam in the fit: 17+
            shows points>=17
     5{trump} Game in the fit
            shows points<=16

   after 1N (P) 3C (P) 3N (P) | 1N (P) 3D (P) 3N (P)
     6N     No fit, but slam values: {slam} total points
            shows strength>=slam
     P      No fit: 3NT

   after (any auction)
     when asked nt_invite
     4H     Accepts, in the 4-4 heart fit
            shows H>=4, strength>=game
            when  partner.H>=4
     4S     Accepts, in the 4-4 spade fit
            shows S>=4, strength>=game
            when  partner.S>=4
     3H     Declines, in the 4-4 heart fit
            shows H>=4, strength<=invite
            when  partner.H>=4
     3S     Declines, in the 4-4 spade fit
            shows S>=4, strength<=invite
            when  partner.S>=4
     3N     Accepts the invitation
            shows strength>=game
     P      Declines: not a maximum
            shows strength<=invite

   after (any auction)
     when answered nt_invite, partner.last=3H | partner.last=3S, style is not bba
     P      Partner declined: play three of the major

   after (any auction)
     when asked quant
     6N     Accepts the slam invitation
            shows points>=32-partner.points.min
            when  style is not bba | shown.hcp.min>=nt_max+1
     P      Declines: not enough for slam
            shows points<=31-partner.points.min
            when  style is not bba | shown.hcp.min>=nt_max+1
     6N     Accepts the slam invitation
            shows hcp>=33-partner.hcp.min
            when  style is bba, shown.hcp.max<=nt_max
     P      Declines: not enough for slam
            shows hcp<=32-partner.hcp.min
            when  style is bba, shown.hcp.max<=nt_max

   after 1N (2C)
     when vs_2c
     6N     To play: {slam} total points
            shows balanced, strength=slam, H<=4, S<=4
     4N     Quantitative: {slam_invite} total points, invites 6NT
            shows balanced, strength=slam_invite
     3N     To play: {game} total points
            shows strength=game, H<=4, S<=4
     2N     Invitational: {invite} total points
            shows strength=invite, H<=4, S<=4, C<=5, D<=5
            when  minors is not four_way, minors is not four_way_reversed
     3N     No better call: {game} total points or more
            shows strength>=game
     P      Nothing to say over their 2♣

== smolen: Smolen: 5-4 in the majors after Stayman's denial
   file: conventions/notrump/smolen.bid
   card: notrump.smolen.play
   needs: stayman

   after (any auction)
     when answered majors, partner.H<=3, partner.S<=3
     3H     Smolen: four hearts, five spades, game forcing  [alert]  [artificial]
            shows H=4, S=5, strength>=game
            when  style is not bba
     3S     Smolen: four spades, five hearts, game forcing  [alert]  [artificial]
            shows S=4, H=5, strength>=game
            when  style is not bba
     3H     Smolen: four hearts, five spades, game forcing  [alert]  [artificial]
            shows H=4, S=5, hcp>=25-partner.hcp.min
            when  style is bba
     3S     Smolen: four spades, five hearts, game forcing  [alert]  [artificial]
            shows S=4, H=5, hcp>=25-partner.hcp.min
            when  style is bba

   after (any auction)
     when asked smolen(M)
     3S     Three spades and a maximum: slam interest
            shows S>=3, hcp>=shown.hcp.max
            when  M is S
     4{M}   Three {M}: game in the five-three fit
            shows M>=3
     3N     Two {M}: no fit, play 3NT
            shows M<=2

   after (any auction)
     when answered smolen(M), partner.last=3N
     6N     No fit, but slam values
            shows points>=32-partner.hcp.min
     P      No fit: 3NT

== stayman: Stayman
   file: conventions/notrump/stayman.bid
   card: notrump.stayman.play
   needs: notrump-base

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on
     2C     Stayman: asks for a 4-card major  [alert]  [artificial]
            shows strength>=invite, H=4 | S=4 | (minors is four_way | minors is four_way_reversed, strength=invite, C<=5, D<=5), H<=4 | S<=3 | strength>=game
            when  !shape 4333 | (minors is four_way | minors is four_way_reversed, strength=invite), style is not bba
     2C     Stayman: asks for a 4-card major  [alert]  [artificial]
            shows hcp>=24-partner.hcp.max, (H=4 | S=4, H<=5, S<=5, H<=4 | hcp>=25-partner.hcp.min) | (minors is four_way | minors is four_way_reversed, strength=invite, C<=5, D<=5)
            when  style is bba

   after 1N (P) 2C (P) | (1x) 1N (P) 2C (P) | (1x) P (P) 1N (P) 2C (P) | (1x) 1N (X) 2C (P) | (1x) P (P) 1N (X) 2C (P)
     2H     4+ hearts
            shows H>=4
     2S     4 spades, not 4 hearts
            shows S>=4, H<=3
     2D     No 4-card major
            shows H<=3, S<=3

   after (any auction)
     when answered majors
     2S     Five spades, four hearts, invitational
            shows S=5, H=4, strength=invite
            when  partner.last=2D, style is not bba
     2S     Five spades, four hearts, invitational
            shows S=5, H=4, hcp>=23-partner.hcp.min, hcp<=24-partner.hcp.min
            when  partner.last=2D, style is bba
     6H     Slam in the heart fit
            shows H>=4, strength=slam
            when  partner.H>=4
     6S     Slam in the spade fit
            shows S>=4, strength=slam
            when  partner.S>=4
     4H     Game in the heart fit
            shows H>=4, strength>=game
            when  partner.H>=4, style is not bba
     3H     Invitational raise in hearts
            shows H>=4, strength=invite
            when  partner.H>=4, style is not bba
     4S     Game in the spade fit
            shows S>=4, strength>=game
            when  partner.S>=4, style is not bba
     3S     Invitational raise in spades
            shows S>=4, strength=invite
            when  partner.S>=4, style is not bba
     6H     Slam in the heart fit, counting shortness
            shows H>=4, tp(H)>=33-partner.points.min
            when  partner.H>=4
     6S     Slam in the spade fit, counting shortness
            shows S>=4, tp(S)>=33-partner.points.min
            when  partner.S>=4
     4H     Game in the heart fit, counting shortness
            shows H>=4, tp(H)>=25-partner.points.min
            when  partner.H>=4, strength<=invite, style is not bba
     4S     Game in the spade fit, counting shortness
            shows S>=4, tp(S)>=25-partner.points.min
            when  partner.S>=4, strength<=invite, style is not bba
     4H     Game in the heart fit
            shows H>=4, (hcp>=25-partner.hcp.min, !shape 4333) | hcp>=26-partner.hcp.min | (hcp>=24-partner.hcp.min, shortest<=0)
            when  partner.H>=4, matchpoints, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     4H     Game in the heart fit
            shows H>=4, (hcp>=24-partner.hcp.min, !shape 4333) | hcp>=25-partner.hcp.min | (hcp>=23-partner.hcp.min, shortest<=1) | (hcp>=22-partner.hcp.min, shortest<=0)
            when  partner.H>=4, imps, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3H     Invitational raise in hearts
            shows H>=4, (hcp>=25-partner.hcp.max, !shape 4333) | hcp>=26-partner.hcp.max | (hcp>=24-partner.hcp.max, shortest<=1) | (hcp>=23-partner.hcp.max, shortest<=0), (hcp<=24-partner.hcp.min, shortest>=1) | (hcp<=25-partner.hcp.min, shape 4333) | hcp<=23-partner.hcp.min
            when  partner.H>=4, matchpoints, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3H     Invitational raise in hearts
            shows H>=4, (hcp>=25-partner.hcp.max, !shape 4333) | hcp>=26-partner.hcp.max | (hcp>=24-partner.hcp.max, shortest<=1) | (hcp>=23-partner.hcp.max, shortest<=0), (hcp<=23-partner.hcp.min, shortest>=2) | (hcp<=24-partner.hcp.min, shape 4333) | (hcp<=22-partner.hcp.min, shortest=1) | hcp<=21-partner.hcp.min
            when  partner.H>=4, imps, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     P      Weak with the heart fit: play here
            shows H>=4, (hcp<=24-partner.hcp.max, shortest>=2) | (hcp<=25-partner.hcp.max, shape 4333) | (hcp<=23-partner.hcp.max, shortest=1) | hcp<=22-partner.hcp.max
            when  partner.H>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     4S     Game in the spade fit
            shows S>=4, (hcp>=25-partner.hcp.min, !shape 4333) | hcp>=26-partner.hcp.min | (hcp>=24-partner.hcp.min, shortest<=0)
            when  partner.S>=4, matchpoints, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     4S     Game in the spade fit
            shows S>=4, (hcp>=24-partner.hcp.min, !shape 4333) | hcp>=25-partner.hcp.min | (hcp>=23-partner.hcp.min, shortest<=1) | (hcp>=22-partner.hcp.min, shortest<=0)
            when  partner.S>=4, imps, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3S     Invitational raise in spades
            shows S>=4, (hcp>=25-partner.hcp.max, !shape 4333) | hcp>=26-partner.hcp.max | (hcp>=24-partner.hcp.max, shortest<=1) | (hcp>=23-partner.hcp.max, shortest<=0), (hcp<=24-partner.hcp.min, shortest>=1) | (hcp<=25-partner.hcp.min, shape 4333) | hcp<=23-partner.hcp.min
            when  partner.S>=4, matchpoints, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3S     Invitational raise in spades
            shows S>=4, (hcp>=25-partner.hcp.max, !shape 4333) | hcp>=26-partner.hcp.max | (hcp>=24-partner.hcp.max, shortest<=1) | (hcp>=23-partner.hcp.max, shortest<=0), (hcp<=23-partner.hcp.min, shortest>=2) | (hcp<=24-partner.hcp.min, shape 4333) | (hcp<=22-partner.hcp.min, shortest=1) | hcp<=21-partner.hcp.min
            when  partner.S>=4, imps, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     P      Weak with the spade fit: play here
            shows S>=4, (hcp<=24-partner.hcp.max, shortest>=2) | (hcp<=25-partner.hcp.max, shape 4333) | (hcp<=23-partner.hcp.max, shortest=1) | hcp<=22-partner.hcp.max
            when  partner.S>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     6N     Slam: 17 or more, no fit found
            shows points>=32-partner.hcp.min
            when  style is not bba
     4N     Quantitative, no fit found
            shows balanced, strength=slam_invite, points<=31-partner.hcp.min
            when  style is not bba
     3N     Game: {game} total points, no fit found
            shows strength=game
            when  style is not bba
     2N     Invitational: {invite} total points, no fit found
            shows strength=invite
            when  style is not bba
     4H     Game in the heart fit
            shows H>=4, bba_stay_game_points>=10
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3H     Invitational raise in heart
            shows H>=4, bba_stay_raise_points>=8, bba_stay_game_points<=9
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak with the heart fit: play here
            shows H>=4, bba_stay_raise_points<=7
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4H     Game in the heart fit
            shows H>=4, bba_stay_game_imp_points>=10
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3H     Invitational raise in heart
            shows H>=4, bba_stay_raise_imp_points>=8, bba_stay_game_imp_points<=9
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak with the heart fit: play here
            shows H>=4, bba_stay_raise_imp_points<=7
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4S     Game in the spade fit
            shows S>=4, bba_stay_sgame_points>=10
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3S     Invitational raise in spade
            shows S>=4, bba_stay_sraise_points>=8, bba_stay_sgame_points<=9
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak with the spade fit: play here
            shows S>=4, bba_stay_sraise_points<=7
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4S     Game in the spade fit
            shows S>=4, bba_stay_sgame_imp_points>=10
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3S     Invitational raise in spade
            shows S>=4, bba_stay_sraise_imp_points>=8, bba_stay_sgame_imp_points<=9
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak with the spade fit: play here
            shows S>=4, bba_stay_sraise_imp_points<=7
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     6N     Slam: 17 or more, no fit found
            shows points>=32-partner.hcp.min
            when  style is bba
     4N     Quantitative, no fit found
            shows balanced, strength=slam_invite, hcp>=33-partner.hcp.max, points<=31-partner.hcp.min
            when  style is bba
     3N     Game: {game} total points, no major fit
            shows strength=game
            when  partner.H<=3, partner.S<=3, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     2N     Invitational, no major fit
            shows points>=24-partner.hcp.max, strength<=invite
            when  partner.H<=3, partner.S<=3, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3N     Game, no heart fit
            shows H<=3, hcp>=10 | (hcp=9, tens>=2), strength<=game
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no heart fit
            shows H<=3, hcp>=7, hcp<=9, hcp<=8 | tens<=1, H<=2 | hcp>=8 | tens>=1
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak, three hearts: play here
            shows H=3, hcp<=7, tens=0
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3N     Game, no heart fit
            shows H<=3, hcp>=10 | (hcp=9, tens>=1 | shortest<=1), strength<=game
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no heart fit
            shows H<=3, hcp>=7, hcp<=9, hcp<=8 | (tens=0, shortest>=2), H<=2 | hcp>=8 | tens>=2
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak, three hearts: play here
            shows H=3, hcp<=7, tens<=1
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3N     Game, no spade fit
            shows S<=3, hcp>=10 | (hcp=9, tens>=2), strength<=game
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no spade fit
            shows S<=3, hcp>=7, hcp<=9, hcp<=8 | tens<=1, S<=2 | hcp>=8 | tens>=1
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak, three spades: play here
            shows S=3, hcp<=7, tens=0
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3N     Game, no spade fit
            shows S<=3, hcp>=10 | (hcp=9, tens>=1 | shortest<=1), strength<=game
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no spade fit
            shows S<=3, hcp>=7, hcp<=9, hcp<=8 | (tens=0, shortest>=2), S<=2 | hcp>=8 | tens>=2
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Weak, three spades: play here
            shows S=3, hcp<=7, tens<=1
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3N     Game: {game} total points, no heart fit
            shows strength=game, H<=3
            when  partner.H>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3N     Game: {game} total points, no spade fit
            shows strength=game, S<=3
            when  partner.S>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     2N     Invitational, no heart fit
            shows points>=24-partner.hcp.max, strength<=invite, H<=3
            when  partner.H>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     2N     Invitational, no spade fit
            shows points>=24-partner.hcp.max, strength<=invite, S<=3
            when  partner.S>=4, partner.hcp.min<=14 | partner.hcp.max>=18, style is bba
     3N     Game: {game} total points, no major fit
            shows bba_stay_nt_points>=10, strength<=game
            when  partner.H<=3, partner.S<=3, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no major fit
            shows points>=24-partner.hcp.max, bba_stay_nt_points<=9
            when  partner.H<=3, partner.S<=3, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3N     Game: {game} total points, no major fit
            shows bba_stay_nt_imp_points>=10, strength<=game
            when  partner.H<=3, partner.S<=3, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     2N     Invitational, no major fit
            shows points>=24-partner.hcp.max, bba_stay_nt_imp_points<=9
            when  partner.H<=3, partner.S<=3, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3C     Game values, five or more clubs
            shows C>=5, C>=D, (hcp>=9, !stop(D) | C>=6) | hcp>=12
            when  partner.H<=3, partner.S<=3, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3D     Game values, five or more diamonds
            shows D>=5, D>C, (hcp>=9, !stop(D) | D>=6) | hcp>=12
            when  partner.H<=3, partner.S<=3, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3C     Game values, five or more clubs, no heart fit
            shows C>=5, C>=D, H<=3, hcp>=10 | (C>=6, hcp>=9)
            when  partner.H>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3D     Game values, five or more diamonds, no heart fit
            shows D>=5, D>C, H<=3, hcp>=10 | (D>=6, hcp>=9)
            when  partner.H>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3C     Game values, five or more clubs, no spade fit
            shows C>=5, C>=D, S<=3, hcp>=10 | (C>=6, hcp>=9)
            when  partner.S>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     3D     Game values, five or more diamonds, no spade fit
            shows D>=5, D>C, S<=3, hcp>=10 | (D>=6, hcp>=9)
            when  partner.S>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Six diamonds, weak: play 2D
            shows D>=6, hcp<=8
            when  partner.H<=3, partner.S<=3, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Three hearts and a six-card minor, weak: play 2H
            shows H=3, C>=6 | D>=6, hcp<=8
            when  partner.H>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     P      Three spades and a six-card minor, weak: play 2S
            shows S=3, C>=6 | D>=6, hcp<=8
            when  partner.S>=4, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs
            shows C>=6, C>=D, hcp>=13
            when  partner.H<=3, partner.S<=3, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds
            shows D>=6, D>C, hcp>=13
            when  partner.H<=3, partner.S<=3, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs
            shows C>=6, C>=D, hcp>=12
            when  partner.H<=3, partner.S<=3, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds
            shows D>=6, D>C, hcp>=12
            when  partner.H<=3, partner.S<=3, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs, no heart fit
            shows H<=3, C>=6, C>=D, hcp>=13
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds, no heart fit
            shows H<=3, D>=6, D>C, hcp>=13
            when  partner.H>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs, no heart fit
            shows H<=3, C>=6, C>=D, hcp>=12
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds, no heart fit
            shows H<=3, D>=6, D>C, hcp>=12
            when  partner.H>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs, no spade fit
            shows S<=3, C>=6, C>=D, hcp>=13
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds, no spade fit
            shows S<=3, D>=6, D>C, hcp>=13
            when  partner.S>=4, matchpoints, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4C     Slam try, six or more clubs, no spade fit
            shows S<=3, C>=6, C>=D, hcp>=12
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba
     4D     Slam try, six or more diamonds, no spade fit
            shows S<=3, D>=6, D>C, hcp>=12
            when  partner.S>=4, imps, partner.hcp.min>=15, partner.hcp.max<=17, style is bba

   after (any auction)
     when asked fit_invite(M)
     4M     Accepts: a maximum
            shows points>=shown.hcp.max | (M>=5, points>=shown.hcp.max-1)
     P      Declines: not a maximum
            shows points<=shown.hcp.max-1, M<=4 | points<=shown.hcp.max-2

   after (any auction)
     when asked spades_invite
     4S     Accepts, three spades
            shows S>=3, hcp>=shown.hcp.max-1
     3N     Accepts, two spades
            shows S<=2, hcp>=shown.hcp.max-1
     P      Declines: a minimum
            shows hcp<=shown.hcp.max-2

   after 1N (P) 2C (P) 2H (P) 2N (P) 3S (P)
     when style is bba
     4S     Game in the spade fit: the top of the invitation
            shows S>=4, hcp>=26-partner.hcp.max
     P      Minimum: play 3S
            shows hcp<=25-partner.hcp.max

   after 1N (X)
     when vs_double
     2C     Stayman: asks for a 4-card major  [alert]  [artificial]
            shows hcp>=24-partner.hcp.max, H=4 | S=4
            when  H<=4, S<=4

   after 1N (2C)
     when vs_2c
     X      Stayman: asks for a 4-card major  [alert]  [artificial]
            shows strength>=invite, H=4 | S=4
            when  H<=4, S<=4

   after 1N (X) 2C (P)
     when vs_double
     2H     4+ hearts
            shows H>=4
     2S     4 spades, not 4 hearts
            shows S>=4, H<=3
     2D     No 4-card major
            shows H<=3, S<=3

   after 1N (2C) X (P)
     when vs_2c
     2H     4+ hearts
            shows H>=4
     2S     4 spades, not 4 hearts
            shows S>=4, H<=3
     2D     No 4-card major
            shows H<=3, S<=3

   after 1N (P) 2C (P) 2D (P) 3C (P)
     when style is bba
     5C     Fit, a suit open, a maximum
            shows C>=4, !stop(D) | (S=2, !stop(S)) | (H=2, !stop(H)), points>=17
     4C     Fit, a suit open
            shows C>=4 | (C=3, points>=16), !stop(D) | (S=2, !stop(S)) | (H=2, !stop(H))
     4C     Fit, a flat minimum
            shows C>=4, shortest>=3, points<=15
     3D     Minimum, no club fit
            shows C<=3, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2D (P) 3D (P)
     when style is bba
     5D     Fit, a suit open, a maximum
            shows D>=3, !stop(C) | (S=2, !stop(S)) | (H=2, !stop(H)), points>=17
     4D     Fit, a suit open
            shows D>=4 | D=3, !stop(C) | (S=2, !stop(S)) | (H=2, !stop(H))
     4D     Fit, a flat minimum
            shows D>=3, shortest>=3, points<=15
     4C     Minimum, five clubs
            shows D<=2, C>=5, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2H (P) 3C (P)
     when style is bba
     5C     Fit, a suit open, a maximum
            shows C>=4, !stop(D), points>=17
     4C     Fit, a suit open
            shows C>=4 | (C=3, points>=16), !stop(D)
     4C     Fit, a flat minimum
            shows C>=3, shortest>=3, points<=15
     3D     Minimum, four diamonds
            shows D>=4, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2H (P) 3D (P)
     when style is bba
     5D     Fit, a suit open, a maximum
            shows D>=3, !stop(C), points>=17
     4D     Fit, a suit open
            shows D>=4 | D=3, !stop(C)
     4D     Fit, a flat minimum
            shows D>=3, shortest>=3, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2S (P) 3C (P)
     when style is bba
     5C     Fit, a suit open, a maximum
            shows C>=4, !stop(D), points>=17
     4C     Fit, a suit open
            shows C>=4 | (C=3, points>=16), !stop(D)
     4C     Fit, a flat minimum
            shows C>=3, shortest>=3, points<=15
     3D     Minimum, four diamonds
            shows D>=4, points<=15
     3H     Minimum, flat, three hearts
            shows H=3, shortest>=3, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2S (P) 3D (P)
     when style is bba
     3H     Minimum, flat, three hearts
            shows H=3, shortest>=3, points<=15
     5D     Fit, a suit open, a maximum
            shows D>=3, !stop(C), points>=17
     4D     Fit, a suit open
            shows D>=4 | D=3, !stop(C)
     4D     Fit, a flat minimum
            shows D>=3, shortest>=3, points<=15
     3N     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2D (P) 3C (P) 4C (P)
     when style is bba
     5C     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2D (P) 3D (P) 4D (P)
     when style is bba
     5D     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2H (P) 3C (P) 4C (P)
     when style is bba
     5C     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2H (P) 3D (P) 4D (P)
     when style is bba
     5D     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2S (P) 3C (P) 4C (P)
     when style is bba
     5C     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2S (P) 3D (P) 4D (P)
     when style is bba
     5D     Game in the minor
            shows hcp>=11
     P      Too weak for game
            shows hcp<=10

   after 1N (P) 2C (P) 2D (P) 3C (P) 3D (P) | 1N (P) 2C (P) 2H (P) 3C (P) 3D (P) | 1N (P) 2C (P) 2S (P) 3C (P) 3D (P) | 1N (P) 2C (P) 2S (P) 3C (P) 3H (P) | 1N (P) 2C (P) 2S (P) 3D (P) 3H (P)
     when style is bba
     3N     To play
            shows hcp>=9, hcp<=14
     4N     Quantitative
            shows hcp>=15

   after 1N (P) 2C (P) 2D (P) 3D (P) 4C (P)
     when style is bba
     4H     Four hearts
            shows H>=4
     4S     Four spades
            shows S>=4

   after 1N (P) 2C (P) 2D (P) 4C (P)
     when style is bba
     4D     Five diamonds, two clubs
            shows C<=2, D>=5
     5C     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2D (P) 4D (P)
     when style is bba
     5C     Five clubs, two diamonds
            shows D<=2, C>=5
     5D     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2D (P) 4C (P) 5C (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2D (P) 4D (P) 5D (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2D (P) 4C (P) 4D (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     5C     Game
            shows hcp<=13

   after 1N (P) 2C (P) 2D (P) 4D (P) 5C (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     5D     Game
            shows hcp<=13

   after 1N (P) 2C (P) 2H (P) 4C (P)
     when style is bba
     4D     Five diamonds, two clubs
            shows C<=2, D>=5
     5C     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2H (P) 4D (P)
     when style is bba
     5C     Five clubs, two diamonds
            shows D<=2, C>=5
     5D     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2H (P) 4C (P) 5C (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2H (P) 4D (P) 5D (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2H (P) 4C (P) 4D (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     5C     Game
            shows hcp<=13

   after 1N (P) 2C (P) 2H (P) 4D (P) 5C (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     5D     Game
            shows hcp<=13

   after 1N (P) 2C (P) 2S (P) 4C (P)
     when style is bba
     4D     Five diamonds, two clubs
            shows C<=2, D>=5
     5C     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2S (P) 4D (P)
     when style is bba
     5C     Five clubs, two diamonds
            shows D<=2, C>=5
     5D     To play
            shows hcp>=15

   after 1N (P) 2C (P) 2S (P) 4C (P) 5C (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2S (P) 4D (P) 5D (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     P      Game is enough
            shows hcp<=13

   after 1N (P) 2C (P) 2S (P) 4C (P) 4D (P)
     when style is bba
     6C     Slam
            shows hcp>=14
     5C     Game
            shows hcp<=13

   after 1N (P) 2C (P) 2S (P) 4D (P) 5C (P)
     when style is bba
     6D     Slam
            shows hcp>=14
     5D     Game
            shows hcp<=13

== super-accept: Super-accepting a Jacoby transfer
   file: conventions/notrump/super-accept.bid
   card: notrump.transfers.super_accept
   needs: jacoby-transfers

   after 1N (P) 2D (P) | (1x) 1N (P) 2D (P) | (1x) P (P) 1N (P) 2D (P) | (1x) 1N (X) 2D (P) | (1x) P (P) 1N (X) 2D (P)
     3H     Super-accept: 4+ hearts, a maximum
            shows H>=4, hcp>=16

   after 1N (P) 2H (P) | (1x) 1N (P) 2H (P) | (1x) P (P) 1N (P) 2H (P) | (1x) 1N (X) 2H (P) | (1x) P (P) 1N (X) 2H (P)
     3S     Super-accept: 4+ spades, a maximum
            shows S>=4, hcp>=16

== superaccept-doubleton: Superaccept doubleton
   file: conventions/notrump/superaccept-doubleton.bid
   card: notrump.transfers.super_accept_doubleton
   needs: super-accept

   after 1N (P) 2D (P) | (1x) 1N (P) 2D (P) | (1x) P (P) 1N (P) 2D (P) | (1x) 1N (X) 2D (P) | (1x) P (P) 1N (X) 2D (P)
     2S     Super-accept: 4+ hearts, maximum, doubleton spade  [alert]  [artificial]
            shows H>=4, hcp>=16, S=2, !has(Q,S)
     2N     Super-accept: 4+ hearts, maximum, a doubleton  [alert]  [artificial]
            shows H>=4, hcp>=16, shortest=2

   after 1N (P) 2H (P) | (1x) 1N (P) 2H (P) | (1x) P (P) 1N (P) 2H (P) | (1x) 1N (X) 2H (P) | (1x) P (P) 1N (X) 2H (P)
     2N     Super-accept: 4+ spades, maximum, a doubleton  [alert]  [artificial]
            shows S>=4, hcp>=16, shortest=2

== texas-transfers: Texas Transfers
   file: conventions/notrump/texas-transfers.bid
   card: notrump.transfers.texas
   needs: notrump-base

   after 1N (P) | (1x) 1N (P) | (1x) P (P) 1N (P) | (1x) 1N (X) | (1x) P (P) 1N (X)
     when !they.bid | systems_on
     4D     Texas: 6+ ♥, game only or slam values  [announce: Transfer]  [artificial]
            shows H>=6, suit_strength=game, suit_points<=30-partner.points.max
     4D     Texas: 6+ ♥, game only or slam values  [announce: Transfer]  [artificial]
            shows H>=6, suit_points>=33-partner.points.min
     4H     Texas: 6+ ♠, game only or slam values  [announce: Transfer]  [artificial]
            shows S>=6, suit_strength=game, suit_points<=30-partner.points.max
     4H     Texas: 6+ ♠, game only or slam values  [announce: Transfer]  [artificial]
            shows S>=6, suit_points>=33-partner.points.min
     4D     Texas: 6+ ♥, game only or slam values  [announce: Transfer]  [artificial]
            shows H>=6, tp(H)>=33-partner.points.min
     4H     Texas: 6+ ♠, game only or slam values  [announce: Transfer]  [artificial]
            shows S>=6, tp(S)>=33-partner.points.min

   after 1N (P) 4D (P) | (1x) 1N (P) 4D (P) | (1x) P (P) 1N (P) 4D (P) | (1x) 1N (X) 4D (P) | (1x) P (P) 1N (X) 4D (P)
     4H     Completes the transfer

   after 1N (P) 4H (P) | (1x) 1N (P) 4H (P) | (1x) P (P) 1N (P) 4H (P) | (1x) 1N (X) 4H (P) | (1x) P (P) 1N (X) 4H (P)
     4S     Completes the transfer

   after (any auction)
     when answered texas(M)
     4N     Keycard ask in {M}  [artificial]
            shows suit_points>=33-partner.points.min
     4N     Keycard ask in {M}  [artificial]
            shows tp(M)>=33-partner.points.min
     P      Game reached

   after 1N (2C)
     when vs_2c
     4D     Texas: 6+ ♥, game only or slam values  [announce: Transfer]  [artificial]
            shows H>=6, suit_strength=game, suit_points<=30-partner.points.max
     4D     Texas: 6+ ♥, game only or slam values  [announce: Transfer]  [artificial]
            shows H>=6, suit_points>=33-partner.points.min
     4H     Texas: 6+ ♠, game only or slam values  [announce: Transfer]  [artificial]
            shows S>=6, suit_strength=game, suit_points<=30-partner.points.max
     4H     Texas: 6+ ♠, game only or slam values  [announce: Transfer]  [artificial]
            shows S>=6, suit_points>=33-partner.points.min
     4D     Preemptive: seven or more hearts, no values  [announce: Transfer]  [artificial]
            shows H>=7, hcp>=4, suit_strength=signoff
     4H     Preemptive: seven or more spades, no values  [announce: Transfer]  [artificial]
            shows S>=7, hcp>=4, suit_strength=signoff

   after 1N (2C) 4D (P)
     when vs_2c
     4H     Completes the transfer

   after 1N (2C) 4H (P)
     when vs_2c
     4S     Completes the transfer

== two-nt-responses: Responses to a 2NT opening
   file: conventions/notrump/two-nt-responses.bid
   needs: notrump-base

   after 2N (P)
     3C     Stayman: asks for a four-card major  [alert]  [artificial]
            shows H=4 | S=4, strength>=game
            when  stayman, !puppet, !shape 4333, style is not bba
     3D     Transfer to hearts  [announce: Transfer]  [artificial]
            shows H>=5
            when  jacoby
     3H     Transfer to spades  [announce: Transfer]  [artificial]
            shows S>=5
            when  jacoby
     3N     To play: {game} total points
            shows strength>=game, H<=4, S<=4
            when  style is not bba
     4N     Quantitative: {slam_invite} total points, invites 6NT
            shows balanced, strength=slam_invite
            when  style is not bba
     6N     Slam: {slam} total points
            shows balanced, strength=slam
            when  style is not bba
     P      No game: {signoff}-{invite} total points
            shows strength<=invite
            when  style is not bba
     3C     Stayman: asks for a four-card major  [alert]  [artificial]
            shows hcp>=25-partner.hcp.min, H=4 | S=4
            when  stayman, !puppet, style is bba
     3H     Transfer to spades, 5-5 in the majors  [announce: Transfer]  [artificial]
            shows S>=5, H>=5
            when  jacoby, style is bba
     3N     To play: game values
            shows hcp>=25-partner.hcp.min, H<=4, S<=4
            when  style is bba
     4N     Quantitative: invites 6NT
            shows balanced, hcp>=32-partner.hcp.max, points<=31-partner.hcp.min, H<=4, S<=4
            when  style is bba
     6N     Slam
            shows balanced, points>=32-partner.hcp.min, H<=4, S<=4
            when  style is bba
     P      Nothing: 4 HCP or less
            shows hcp<=24-partner.hcp.min
            when  style is bba

   after 2N (P)
     when style is not bba
     4C     Slam try: six or more clubs, or five and unbalanced
            shows C>=6 | (C>=5, !balanced), strength>=slam_invite, H<=4, S<=4
            when  !gerber
     4D     Slam try: six or more diamonds, or five and unbalanced
            shows D>=6 | (D>=5, !balanced), strength>=slam_invite, H<=4, S<=4

   after 2N (P) 4x (P)
     when (x is C, !gerber) | x is D, style is not bba
     6{x}   A fit: slam
            shows x>=3
     4N     No fit
            shows x<=2

   after 2N (P) 4x (P) 4N (P)
     when (x is C, !gerber) | x is D, style is not bba
     6N     Slam values anyway
            shows strength>=slam
     P      No fit: 4NT

   after 2N (P) 3C (P)
     when !puppet
     3H     4+ hearts
            shows H>=4
     3S     4 spades, not 4 hearts
            shows S>=4, H<=3
     3D     No four-card major
            shows H<=3, S<=3

   after 2N (P) 3D (P)
     3H     Completes transfer

   after 2N (P) 3H (P)
     3S     Completes transfer

   after 2N (P) 3D (P) 3H (P)
     P      Weak: play here
            shows hcp<=24-partner.hcp.max
     3N     Game values, five hearts: choose the game
            shows H=5, hcp>=25-partner.hcp.max
     4H     Game, six or more hearts
            shows H>=6, hcp>=25-partner.hcp.max

   after 2N (P) 3H (P) 3S (P)
     P      Weak: play here
            shows hcp<=24-partner.hcp.max
     3N     Game values, five spades: choose the game
            shows S=5, hcp>=25-partner.hcp.max
     4S     Game, six or more spades
            shows S>=6, hcp>=25-partner.hcp.max

   after 2N (P) | 2C (P) 2D (P) 2N (P)
     when puppet
     3C     Puppet Stayman: asks for a four- or five-card major  [alert]  [artificial]
            shows strength>=game, H<=4, S<=4, H>=3 | S>=3
            when  style is not bba
     3C     Puppet Stayman: asks for a four- or five-card major  [alert]  [artificial]
            shows hcp>=25-partner.hcp.min, H<=4, S<=4, H>=3 | S>=3
            when  style is bba

   after (any auction)
     when asked puppet
     3H     Five hearts
            shows H>=5
     3S     Five spades
            shows S>=5, H<=4
     3D     A four-card major, no five  [artificial]
            shows H=4 | S=4, H<=4, S<=4
     3N     No four- or five-card major
            shows H<=3, S<=3

   after (any auction)
     when answered puppet, partner.last=3D
     3H     Four spades, not four hearts  [alert]  [artificial]
            shows S=4, H<=3
     3S     Four hearts, not four spades  [alert]  [artificial]
            shows H=4, S<=3
     4D     Both majors, no slam interest: opener chooses  [alert]  [artificial]
            shows H=4, S=4, strength<=game
     4C     Both majors, slam interest: opener chooses  [alert]  [artificial]
            shows H=4, S=4, strength>=slam_invite
     6N     No four-card major: slam
            shows H<=3, S<=3, points>=32-partner.hcp.min
     4N     No four-card major: quantitative, invites 6NT
            shows H<=3, S<=3, balanced, strength=slam_invite, points<=31-partner.hcp.min
     3N     No four-card major: game
            shows H<=3, S<=3, strength>=game

   after (any auction)
     when asked puppet_fit(x)
     4{x}   Four {x}: game in the fit
            shows x=4
     3N     No four {x}
            shows x<=3

   after (any auction)
     when asked puppet_both
     4S     Four spades
            shows S=4
     4H     Four hearts, not four spades
            shows H=4, S<=3

   after 2N (P) 3C (P) 3D (P) 3N (P) | 2C (P) 2D (P) 2N (P) 3C (P) 3D (P) 3N (P)
     when puppet
     P      No fit: 3NT

   after (any auction)
     when answered puppet_fit(x), partner.last=4{x}
     6{x}   Slam in the fit
            shows tp(x)>=33-partner.hcp.min
     P      Game in the fit

   after (any auction)
     when answered puppet_both, we.trump is suit
     6{trump} Slam in the fit
            shows tp(trump)>=33-partner.hcp.min
     P      Game in the fit

   after (any auction)
     when answered puppet, partner.last=3H
     6H     Slam in the five-three fit
            shows H>=3, tp(H)>=33-partner.hcp.min
     4H     Game in the five-three fit
            shows H>=3
     6N     No fit: slam
            shows H<=2, points>=32-partner.hcp.min
     4N     No fit: quantitative, invites 6NT
            shows H<=2, balanced, strength=slam_invite, points<=31-partner.hcp.min
     3N     No fit: game
            shows H<=2

   after (any auction)
     when answered puppet, partner.last=3S
     6S     Slam in the five-three fit
            shows S>=3, tp(S)>=33-partner.hcp.min
     4S     Game in the five-three fit
            shows S>=3
     6N     No fit: slam
            shows S<=2, points>=32-partner.hcp.min
     4N     No fit: quantitative, invites 6NT
            shows S<=2, balanced, strength=slam_invite, points<=31-partner.hcp.min
     3N     No fit: game
            shows S<=2

   after (any auction)
     when answered puppet, partner.last=3N
     6N     No fit: slam
            shows points>=32-partner.hcp.min
     4N     No fit: quantitative, invites 6NT
            shows balanced, strength=slam_invite, points<=31-partner.hcp.min
     P      No fit: 3NT

   after (any auction)
     when answered puppet_fit(x), partner.last=3N
     6N     No fit: slam
            shows points>=32-partner.hcp.min
     4N     No fit: quantitative, invites 6NT
            shows balanced, strength=slam_invite, points<=31-partner.hcp.min
     P      No fit: 3NT

== blackwood: Blackwood (standard)
   file: conventions/slam/blackwood.bid
   card: slam.blackwood.standard
   needs: base

   after (any auction)
     when we.trump is suit, !asked, we.forcing=none | we.forcing=round
     4N     Blackwood: how many aces?  [artificial]
            when  we.tp(trump).max>=33, losers<=4, !((trump is not C, C>=2, !has(A,C), !has(K,C), trump is not D, D>=2, !has(A,D), !has(K,D)) | (trump is not C, C>=2, !has(A,C), !has(K,C), trump is not H, H>=2, !has(A,H), !has(K,H)) | (trump is not C, C>=2, !has(A,C), !has(K,C), trump is not S, S>=2, !has(A,S), !has(K,S)) | (trump is not D, D>=2, !has(A,D), !has(K,D), trump is not H, H>=2, !has(A,H), !has(K,H)) | (trump is not D, D>=2, !has(A,D), !has(K,D), trump is not S, S>=2, !has(A,S), !has(K,S)) | (trump is not H, H>=2, !has(A,H), !has(K,H), trump is not S, S>=2, !has(A,S), !has(K,S)))

   after (any auction)
     when we.trump is suit, !asked, we.forcing=game
     4N     Blackwood: how many aces?  [artificial]
            when  tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18

   after (any auction)
     when we.trump is suit, asked control(t)
     4N     Blackwood: how many aces?  [artificial]
            when  trump is C | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)) | partner.cued(C) | me.denied(C), trump is D | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)) | partner.cued(D) | me.denied(D), trump is H | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)) | partner.cued(H) | me.denied(H), trump is S | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)) | partner.cued(S) | me.denied(S)

   after (any auction)
     when we.trump is suit, answered control(t), partner.last=4{trump}
     4N     Blackwood: how many aces?  [artificial]
            when  trump is C | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)) | partner.cued(C), trump is D | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)) | partner.cued(D), trump is H | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)) | partner.cued(H), trump is S | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)) | partner.cued(S)

   after (any auction)
     when asked aces
     5C     0 or 4 aces  [artificial]
            shows keycards(N) in 0|4
     5D     1 ace  [artificial]
            shows keycards(N)=1
     5H     2 aces  [artificial]
            shows keycards(N)=2
     5S     3 aces  [artificial]
            shows keycards(N)=3

   after (any auction)
     when answered aces
     6{trump} Small slam: at most one ace missing
            when  we.keycards(N)>=3
     P      Sign off: the answer is in our suit
            when  partner.last=5{trump}, we.keycards(N).max<=2
     5{trump} Sign off: two aces missing
            when  we.keycards(N).max<=2
     6{trump} Small slam: "0 or 4" with no aces of my own is 4
            when  maybe we.keycards(N)>=3

== control-bids: Control bids before the keycard ask
   file: conventions/slam/control-bids.bid
   card: slam.cue_bids.play
   needs: base

   after (any auction)
     when we.trump is suit, !asked, !answered control, trump is H | trump is S, we.forcing=game
     cheapest(C) Control bid in ♣  [alert]  [artificial]
            when  trump is not C, !partner.cued(C), !me.cued(C), under_game(C), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(D) Control bid in ♦  [alert]  [artificial]
            when  trump is not D, !partner.cued(D), !me.cued(D), under_game(D), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(H) Control bid in ♥  [alert]  [artificial]
            when  trump is not H, !partner.cued(H), !me.cued(H), under_game(H), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(S) Control bid in ♠  [alert]  [artificial]
            when  trump is not S, !partner.cued(S), !me.cued(S), under_game(S), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))

   after (any auction)
     when we.trump is suit, !asked, !answered control, trump is H | trump is S, we.forcing=none | we.forcing=round
     cheapest(C) Control bid in ♣  [alert]  [artificial]
            when  trump is not C, !partner.cued(C), !me.cued(C), under_game(C), we.tp(trump).max>=33, losers<=4, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(D) Control bid in ♦  [alert]  [artificial]
            when  trump is not D, !partner.cued(D), !me.cued(D), under_game(D), we.tp(trump).max>=33, losers<=4, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(H) Control bid in ♥  [alert]  [artificial]
            when  trump is not H, !partner.cued(H), !me.cued(H), under_game(H), we.tp(trump).max>=33, losers<=4, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(S) Control bid in ♠  [alert]  [artificial]
            when  trump is not S, !partner.cued(S), !me.cued(S), under_game(S), we.tp(trump).max>=33, losers<=4, (trump is not C, !(has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)))) | (trump is not D, !(has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)))) | (trump is not H, !(has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)))) | (trump is not S, !(has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)))), has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))

   after (any auction)
     when we.trump is suit, asked control(t), trump is H | trump is S
     cheapest(C) Control bid in ♣  [alert]  [artificial]
            when  trump is not C, !partner.cued(C), !me.cued(C), under_game(C), has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(D) Control bid in ♦  [alert]  [artificial]
            when  trump is not D, !partner.cued(D), !me.cued(D), under_game(D), has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(H) Control bid in ♥  [alert]  [artificial]
            when  trump is not H, !partner.cued(H), !me.cued(H), under_game(H), has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(S) Control bid in ♠  [alert]  [artificial]
            when  trump is not S, !partner.cued(S), !me.cued(S), under_game(S), has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3))
     cheapest(C) Control bid in ♣ past game: first-round control  [alert]  [artificial]
            when  trump is not C, !partner.cued(C), !me.cued(C), !under_game(C), (trump is H, cheapest_rank(C)<27) | (trump is S, cheapest_rank(C)<28), has(A,C) | (C<=0, partner.C.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(D) Control bid in ♦ past game: first-round control  [alert]  [artificial]
            when  trump is not D, !partner.cued(D), !me.cued(D), !under_game(D), (trump is H, cheapest_rank(D)<27) | (trump is S, cheapest_rank(D)<28), has(A,D) | (D<=0, partner.D.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(H) Control bid in ♥ past game: first-round control  [alert]  [artificial]
            when  trump is not H, !partner.cued(H), !me.cued(H), !under_game(H), (trump is H, cheapest_rank(H)<27) | (trump is S, cheapest_rank(H)<28), has(A,H) | (H<=0, partner.H.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(S) Control bid in ♠ past game: first-round control  [alert]  [artificial]
            when  trump is not S, !partner.cued(S), !me.cued(S), !under_game(S), (trump is H, cheapest_rank(S)<27) | (trump is S, cheapest_rank(S)<28), has(A,S) | (S<=0, partner.S.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     4{trump} No further control: game in {trump}
     5{trump} No further control, and the dialogue is past game

   after (any auction)
     when we.trump is suit, answered control(t), partner.last=4{trump}, trump is H | trump is S
     cheapest(C) Control bid in ♣ past game: first-round control  [alert]  [artificial]
            when  trump is not C, !partner.cued(C), !me.cued(C), (trump is H, cheapest_rank(C)<27) | (trump is S, cheapest_rank(C)<28), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, has(A,C) | (C<=0, partner.C.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(D) Control bid in ♦ past game: first-round control  [alert]  [artificial]
            when  trump is not D, !partner.cued(D), !me.cued(D), (trump is H, cheapest_rank(D)<27) | (trump is S, cheapest_rank(D)<28), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, has(A,D) | (D<=0, partner.D.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(H) Control bid in ♥ past game: first-round control  [alert]  [artificial]
            when  trump is not H, !partner.cued(H), !me.cued(H), (trump is H, cheapest_rank(H)<27) | (trump is S, cheapest_rank(H)<28), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, has(A,H) | (H<=0, partner.H.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     cheapest(S) Control bid in ♠ past game: first-round control  [alert]  [artificial]
            when  trump is not S, !partner.cued(S), !me.cued(S), (trump is H, cheapest_rank(S)<27) | (trump is S, cheapest_rank(S)<28), tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18, has(A,S) | (S<=0, partner.S.min<=3), trump is C | !partner.denied(C) | has(A,C) | (C<=0, partner.C.min<=3), trump is D | !partner.denied(D) | has(A,D) | (D<=0, partner.D.min<=3), trump is H | !partner.denied(H) | has(A,H) | (H<=0, partner.H.min<=3), trump is S | !partner.denied(S) | has(A,S) | (S<=0, partner.S.min<=3)
     P      Partner stopped in game over my control bid

== gerber: Gerber: 4♣ asks for aces over partner's notrump
   file: conventions/slam/gerber.bid
   card: slam.gerber.play
   needs: notrump-base

   after 1N (P)
     when !texas_4c
     4C     Gerber: how many aces?  [alert]  [artificial]
            shows balanced, points>=32-partner.hcp.min, H<=4, S<=4
            when  style is not bba
     4C     Gerber: how many aces?  [alert]  [artificial]
            shows balanced, hcp>=31-partner.hcp.min, H<=4, S<=4
            when  style is bba

   after 2N (P) | 2C (P) 2D (P) 2N (P)
     4C     Gerber: how many aces?  [alert]  [artificial]
            shows H<=4, S<=4, (balanced, strength>=slam) | (C>=6 | (C>=5, !balanced), strength>=slam_invite)
            when  style is not bba
     4C     Gerber: how many aces?  [alert]  [artificial]
            shows H<=4, S<=4, (balanced, hcp>=31-partner.hcp.min) | (C>=6, hcp>=29-partner.hcp.min)
            when  style is bba

   after 1x (P) 1y (P) 1N (P) | 1x (P) 1y (P) 2N (P)
     when !only_openings
     4C     Gerber: how many aces?  [alert]  [artificial]
            shows balanced, points>=32-partner.hcp.min

   after (any auction)
     when asked gerber
     4D     0 or 4 aces  [artificial]
            shows keycards(N) in 0|4
     4H     1 ace  [artificial]
            shows keycards(N)=1
     4S     2 aces  [artificial]
            shows keycards(N)=2
     4N     3 aces  [artificial]
            shows keycards(N)=3

   after (any auction)
     when answered gerber
     7N     Grand slam: all the aces and 35 between us
            when  we.keycards(N)=4, points+partner.hcp.min>=35
     5C     Gerber: how many kings?  [alert]  [artificial]
            when  we.keycards(N)=4, points+partner.hcp.min>=33, points+partner.hcp.min<=34, C<=5
     6C     Slam in clubs: at most one ace missing
            when  we.keycards(N)>=3, C>=6, imps
     6N     Small slam: at most one ace missing
            when  we.keycards(N)>=3
     4N     Sign off: two aces missing
            when  we.keycards(N).max<=2
     6N     Small slam: "0 or 4" with no aces of my own is 4
            when  maybe we.keycards(N)>=3

   after (any auction)
     when asked gerber_kings
     5D     0 or 4 kings  [artificial]
            shows controls-keycards(N)-keycards(N)=0 | controls-keycards(N)-keycards(N)=4
     5H     1 king  [artificial]
            shows controls-keycards(N)-keycards(N)=1
     5S     2 kings  [artificial]
            shows controls-keycards(N)-keycards(N)=2
     5N     3 kings  [artificial]
            shows controls-keycards(N)-keycards(N)=3

   after (any auction)
     when answered gerber_kings
     7N     Grand slam: all the aces and kings
            when  (partner.last=5N, controls-keycards(N)-keycards(N)>=1) | (partner.last=5S, controls-keycards(N)-keycards(N)>=2) | (partner.last=5H, controls-keycards(N)-keycards(N)>=3) | (partner.last=5D, controls-keycards(N)-keycards(N)>=4)
     6N     Small slam: a king missing

== over-3nt: Slam after partner's 3NT
   file: conventions/slam/over-3nt.bid
   needs: base

   after (any auction)
     when partner.last=3N, !they.bid, we.trump is none
     6N     Slam: 34 or more between us (partner at his minimum)
            shows hcp+partner.hcp.min>=34
     4N     Quantitative: 32-33 between us
            shows hcp+partner.hcp.min>=32, hcp+partner.hcp.max<=35
     4C     Slam try: six or more clubs
            shows C>=6, hcp+partner.hcp.min>=31
     4D     Slam try: six or more diamonds
            shows D>=6, hcp+partner.hcp.min>=31
     4S     A standalone spade suit, and a short suit unguarded
            shows (S>=6, quality(S)=3, top5(S)>=4) | (S>=7, quality(S)=3), (H<=2, !stop(H)) | (D<=2, !stop(D)) | (C<=2, !stop(C))
     4H     A standalone heart suit, and a short suit unguarded
            shows (H>=6, quality(H)=3, top5(H)>=4) | (H>=7, quality(H)=3), (S<=2, !stop(S)) | (D<=2, !stop(D)) | (C<=2, !stop(C))

   after (any auction)
     when asked slam_try(m), partner.last=4{m}, we.trump is none
     6{m}   A fit: slam
            shows m>=3
     4N     No fit
            shows m<=2

   after (any auction)
     when answered slam_try(m), partner.last=4N
     6N     Slam values without the fit: 34+
            shows hcp+partner.hcp.min>=34
     P      No fit: 4NT

   after 1x (P) 1y (P) 2z (P)
     when z is not x, z is not y
     6N     Slam: 33+ points between us (partner at his minimum)
            shows points+partner.points.min>=33, !shortest<=1
     4N     Quantitative: 31-32 points between us
            shows points+partner.points.min>=31, points+partner.points.max<=36, !shortest<=1

   after 1x (P) 1y (P) 1z (P)
     6N     Slam: 33+ points between us (partner at his minimum)
            shows points+partner.points.min>=33, !shortest<=1
     4N     Quantitative: 31-32 points between us
            shows points+partner.points.min>=31, points+partner.points.max<=36, !shortest<=1

   after 1x (P) 2y (P) 2z (P)
     when z is not x, z is not y
     6N     Slam: 33+ points between us (partner at his minimum)
            shows points+partner.points.min>=33, !shortest<=1
     4N     Quantitative: 31-32 points between us
            shows points+partner.points.min>=31, points+partner.points.max<=36, !shortest<=1

== rkcb-1430: Roman Keycard Blackwood (1430; 0314 as a treatment)
   file: conventions/slam/rkcb-1430.bid
   needs: base

   after (any auction)
     when k1430 | k0314, we.trump is suit, !asked, we.forcing=none | we.forcing=round
     4N     Keycard ask in {trump}  [artificial]
            when  we.tp(trump).max>=33, losers<=4, !((trump is not C, C>=2, !has(A,C), !has(K,C), trump is not D, D>=2, !has(A,D), !has(K,D)) | (trump is not C, C>=2, !has(A,C), !has(K,C), trump is not H, H>=2, !has(A,H), !has(K,H)) | (trump is not C, C>=2, !has(A,C), !has(K,C), trump is not S, S>=2, !has(A,S), !has(K,S)) | (trump is not D, D>=2, !has(A,D), !has(K,D), trump is not H, H>=2, !has(A,H), !has(K,H)) | (trump is not D, D>=2, !has(A,D), !has(K,D), trump is not S, S>=2, !has(A,S), !has(K,S)) | (trump is not H, H>=2, !has(A,H), !has(K,H), trump is not S, S>=2, !has(A,S), !has(K,S)))

   after (any auction)
     when k1430 | k0314, we.trump is suit, !asked, we.forcing=game
     4N     Keycard ask in {trump}  [artificial]
            when  tp(trump)+partner.tp(trump).min>=33 | tp(trump)>=18

   after (any auction)
     when k1430 | k0314, we.trump is suit, asked control(t)
     4N     Keycard ask in {trump}  [artificial]
            when  trump is C | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)) | partner.cued(C) | me.denied(C), trump is D | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)) | partner.cued(D) | me.denied(D), trump is H | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)) | partner.cued(H) | me.denied(H), trump is S | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)) | partner.cued(S) | me.denied(S)

   after (any auction)
     when k1430 | k0314, we.trump is suit, answered control(t), partner.last=4{trump}
     4N     Keycard ask in {trump}  [artificial]
            when  trump is C | has(A,C) | (C<=0, partner.C.min<=3) | (style is first_or_second_round, has(K,C) | (C<=1, partner.C.min<=3)) | partner.cued(C), trump is D | has(A,D) | (D<=0, partner.D.min<=3) | (style is first_or_second_round, has(K,D) | (D<=1, partner.D.min<=3)) | partner.cued(D), trump is H | has(A,H) | (H<=0, partner.H.min<=3) | (style is first_or_second_round, has(K,H) | (H<=1, partner.H.min<=3)) | partner.cued(H), trump is S | has(A,S) | (S<=0, partner.S.min<=3) | (style is first_or_second_round, has(K,S) | (S<=1, partner.S.min<=3)) | partner.cued(S)

   after (any auction)
     when k1430 | k0314, asked keycards(t)
     5C     1 or 4 keycards  [artificial]
            shows keycards(t) in 1|4
            when  gstyle is not bba, !m0314 | t is H | t is S
     5D     0 or 3 keycards  [artificial]
            shows keycards(t) in 0|3
            when  gstyle is not bba, !m0314 | t is H | t is S
     5C     0 or 3 keycards  [artificial]
            shows keycards(t) in 0|3
            when  gstyle is not bba, m0314, t is C | t is D
     5D     1 or 4 keycards  [artificial]
            shows keycards(t) in 1|4
            when  gstyle is not bba, m0314, t is C | t is D
     5C     1 or 4 keycards  [artificial]
            shows keycards(t) in 1|4
            when  gstyle is bba, !k0314
     5D     0 or 3 keycards  [artificial]
            shows keycards(t) in 0|3
            when  gstyle is bba, !k0314
     5C     0 or 3 keycards  [artificial]
            shows keycards(t) in 0|3
            when  gstyle is bba, k0314
     5D     1 or 4 keycards  [artificial]
            shows keycards(t) in 1|4
            when  gstyle is bba, k0314
     5H     2 keycards, no {t} queen  [artificial]
            shows keycards(t)=2, !has(Q,t)
     5S     2 keycards and the {t} queen  [artificial]
            shows keycards(t)=2, has(Q,t)

   after (any auction)
     when k1430 | k0314, answered keycards(t)
     7{t}   Grand slam
            when  we.keycards(t)=5, has(Q,t) | partner.has(Q,t), grand_try
     6{t}   Small slam: at most one keycard missing
            when  we.keycards(t)>=4
     P      Sign off: partner's answer is in our suit
            when  partner.last=5{t}, we.keycards(t).max<=3
     5{t}   Sign off: two keycards missing
            when  we.keycards(t).max<=3
     5{t}   Sign off: partner corrects to 6 with the higher count
            when  maybe we.keycards(t)>=4

   after (any auction)
     when k1430 | k0314, asked keycard_correct(t)
     6{t}   Corrects to six: the higher count
            shows keycards(t)>=3
     P      Accepts the sign-off

== slam-catch: Game or slam once a trump suit is agreed
   file: conventions/slam/slam-catch.bid
   needs: base

   after (any auction)
     when we.trump is suit, we.forcing=game, !asked
     4{trump} Game in {trump}: nothing more to show
            when  trump is H | trump is S