• ♦2♣/2♦: All invites go through 2♣ (2♦ mandatory), 2♦=GF
• ◦After 2♣-2♦:
• ▪P signoff in D
• ▪2Y=5, 3Y=good 6
• ▪2♥/3♥: After 1A-1♠-1NT-2♣-2♦, 2♥=54, 3♥=55
• ▪oM invite 54 (see 4-4 below) (NEW)
• ▪2NT invite (do not invite with flat 11)
• ▪3X=good support not interested in NT, may not be 4# in Y
• ▪3NT Balanced choice of games: 1A-1A-1NT-2♣-2♦-3NT: balanced choice of games 5332
• ◦Over 2♦: priorities 4oM, 3#M, 5#, 2N
• ▪Opener never jumps, so shows splinter
• ♦2♠ reverse 4-4: with 4-4 invite 1m-1♥-1NT-2♠ (NEW)
• ♦2NT Club Transfer: (NEW!!!) 1X-1Y-1NT-2NT is not NT, it’s a club Transfer (!!), go through 2♣ to invite NT
• ♦3A: Natural Slam try, jump to 3Y demands control bid, picture bids either self-sufficient suit (1 loser opposite void) or 55 in new suit, or distributional with support for X
• ♦Self-Splinter above 3Y
• ♦4♣ Gerber/4NT Quant (do we want to eliminate this Gerber)
• ♦Other: Off in comp except on over takeout double, 2♣ still invite BPH, on over 1♣-1♦-1NT … 4/16/26 changed this with Radu, BPH just playing reg NMF (can’t really be GF, and only really do reg NFM if you’re 5431 max and don’t want to play NT)

• ♦When: 3rd (after opener rebids original suit, could be artificial for suit bid if most economical bid) and 4th suit forcing by UPH
• ♦Is 3rd Suit Forcing GF. Discussed with Radu 5/10/25, opener is forced to keep bidding, but responder can pass (e.g. 1♣-1♥-2♣-2♦-2♥, can pass or 1♣-1♥-2♣-2♦-3♦ can pass), but if responder bids again its GF.
• ♦Priorities: 3# for M, rebid extra length, NT w/ stopper in 4th, raise 4th w/ 4 (rare), punt with least likely rebid
• ♦Spades: 1♣-1♦-1♥-1♠ GF; 1♣-1♦-1♥-2♠ GF (slam interest)
• ♦Punts: Punt when can’t show support or bid NT or show extra length. Responder should then try to keep the bidding low, rebidding 2nd suit at 2-level always a punt (can jump with very rare 5-6).
• ◦2♠ after a)1♣-1♦-1♠-2♥ b)1♣-1♥-1♠-2♦ c)1♦-1♥-1♠-2♣ d) 1♦-1♠-2♣-2♥ (tricky one)
• ◦3♠ after a) 1♦-1♥-2♣-2♠ (opener already denied 4)
• ◦2♥ after a) 1♥-1♠-2♣-2♦ b) 1♣-1♦-1♥-1♠
• ◦3♦ after a) 1♥-1♠-2♦-3♣

• ♦1NT-2NT: Reminder 1X-1NT-2NT is also a 17-19 2NT rebid
• ♦All Transfers: All bids are transfers: CDHS for DHSC
• ♦Must accept possible sign offs. Must accept when could be signoff
• ♦Bypass denies. Whatever you bypass you deny

> Examples:

• ♦1♣-1♠-2N:
• ◦3♣=5+D maybe signing off, must accept
• ◦3♦=5+S, 4+H GF (partner shows fit)
• ◦3♥=5+S, may be signing off, must accept
• ◦3♠=5+C GF
• ♦1♦-1♥-2N:
• ◦3♣=5+D maybe signoff, must accept
• ◦3♦=5+H maybe signoff, must accept (bid 3♠ after if 45)
• ◦3♥=44 majors GF
• ◦3♠=5+C GF
• ♦1♣-1♦-2N:
• ◦3♣=5+D may be signoff
• ◦3♦=5+D 4♥ 12+HCP
• ◦3♥=5+D 4♠ 12+HCP
• ◦3♠=5+D 5+C GF
• ♦1♠-1N-2N: 3♣♦♥ could be signoffs
• ♦1♥-1N-2N: 3♣♦ could be signoffs, 3♥ is impossible transfer so 55+m GF, 3♠ 5+C GF
• ♦1♣-1N-2N: Exception 3♣ is to play, 3♦♥♠ don’t exist, Only one possible game (3N)
• ♦1♦-1N-2N: Exception 3m to play, 3♥♠ club splinters (couldn’t 2/1)
• ♦2/17/26: Six Card slam tries vs 55. 1m-1M-2NT … 4oM direct is 55, transfer to 3M then 4oM is 6 card slam try, then 4NT is KC, vs transfer to 3M then 4NT is quant.
• ♦Comments from Radu/Joe:
• ◦1♦-1♠-2NT:
• ▪3♣: D Support
• ▪3♦: Forced
• ▪Show H or C shortness, rebid S to show 5
• ▪3♥: 0-1♥, D support, 4# S
• ▪3♠: 5#S, 3+D
• ▪3N: 4#S, 2/3 H, D support, NF
• ▪4♣: 4#S, 2/3 H, 0-1♣, 5/6 D
• ▪3♦: H
• ▪3♥: S
• ▪3NT would pass COGS
• ▪3♠: C 55 or better
• ▪3NT: to play
• ▪4♣: KC in major

• ♦The main ideas is you always raise partner with 3-card support when you’re 5431, min is 11-12 HCP, max is 13-bad 14 HCP, with good 14-17 HCP (couldn’t open 1NT) you bid on after the responders second bid (1♥-1♠-2♦-2♥-2♠). You may end up in 2m if responder is minimum and prefers the suit. With 4-card support you can’t be 14 HCP because you open NT with 5422, and you would jump with 14 HCP and 5431, so min is 11-12 and max is 13.
• ♦2NT ask:
• ◦3♣: 3# min, 3♦: 3# max, 3♥: 4# min, 3♠: 4# max, 3NT: Max 4333
• ◦4♣ if 1m is 1♣: 5#♣/4#M
• ◦4♦ if 1m is 1♦: 5#♦/4#M
• ◦4x: 4#, short (prefer to show short suit with 4-card support, even if 54)

• ♦Opener: Typically, 17+, Always more in 1st suit, 55 Jump Shift, 56 Plan to bid 6 then 5 twice
• ♦Responder Slow Down: Ingberman/Lebensohl (7-), cheaper of 4th suit or 2NT to slow auction else GF (but must show 2M if 5# and below slowdown bid)
• ◦Opener: 2NT/3m1 NF. Opener to bid 3 of what they opened if they don't have something cheaper to bid, bigger is 19-21, if opener needs to force can invent bid in 4th suit.
• ♦Opener rebid: Cheaper of 3rd suit or 2NT if only 2 suits bid 1♦-1NT-2♥ (2♠ is slow down)
• ♦One exception: 1♥-1NT-2♠, 3m is the slow down, 2NT asks for shape
• ♦Other: With minor fits, bids below 3NT are about 3NT; With major fits, serious 3NT applies if rules met

Other Competitive bids:

• ♦2NT is LR in competitive auctions. (1♠)-2♥-(2♠)-2NT
• ♦1♥-(2♠): 2NT LR 3#+; 1♠-(2♥)-2NT LR 4#+
• ♦Doubles of cue bids/artificial bids are “I would have made that bid”. (1♥)-1♠-(2♠)-X or 1♦-(1♠)-2♥-(3♥)-X