# alias: GibStayman
# button-text: GIB NT & 2C Response
# gib-works: true
# bba-works: true
# auction-filter: Auction.....\n1NT? +Pass +2C +
# convention-card-ns: 21GF-GIB
# convention-card-ew: 21GF-GIB

/*@chat
--- Stayman asks the opener for a 4-card major.  Responses are as follow...
• 2!D - No 4-card major
• 2!H - 4+!H, may also have 4!S
• 2!S - 4+!S and denies 4!H
Normally, Stayman shows 8+HCP; but, if you're willing to pass anything that your
partner might bid, you may bid 2!C with any strength.
https://www.bridgebum.com/stayman.php
https://www.bridgebum.com/crawling_stayman.php
@chat*/

# Stayman
dealer south

# 1 Notrump Opening
#include "script/GIB-1N"
# Defines gibNT
#include "script/Calm-Opponents"
# Defines calmWest
#include "script/TP"
# Defines tpNorth

# Boost quality of North's major
nMajorQual  = hcp(north,spades) + hcp(north,hearts)>3

# Define North's Splinter bids so we can exclude them
splinter = shape(north,4405 + 4450 + 4045 + 4054 + 0445 +0454 + any 4441 -xxx1) and tpNorth>11
n3NT = shape(north,2344 +3244) and hcp(north)>9 and hcp(north)<16
n7NT = shape(north,any 4432 +any 4333) and hcp(north)>19
avoid = not (splinter or n3NT or n7NT)

# Define various 2C bids -- GIB does not play Drop Dead or Crawlling Stayman
# GIB does not bid 2C with less than 9 Total Points
smolen      = shape(north,54xx +45xx)
majorInvite = shape(north,54xx +45xx) and tpNorth<10 and hcp(north)<10 and not smolen
stayman     = shape(north,4xxx +x4xx +4432 +4342 +3442 -xx2x -any 7xxx -any 6xxx) and not (smolen or majorInvite)
n2Clubs = (stayman or majorInvite or smolen) and nMajorQual and hcp(north)>6 and hcp(north)<20 and tpNorth>8 and avoid

gibNT and n2Clubs and calmWest

action
average "45xx Invite " 100 * (majorInvite and shape(north,45xx)),
average "54xx Invite " 100 * (majorInvite and shape(north,54xx)),
average "smolen      " 100 * smolen,
average "stayman     " 100 * stayman,