*** OKbridge Convention Card Format 2 *** General Names:Harry Zhou and Hua Yang, Approach:Precision Very-Light-Openings Strong 1C, Desc: 16+ Notrump 3C: 5 clubs and 4+ dia , 2NT:21-22, 1NT:13-15 3D:4+ clubs and 5 dia, 1NT-Alt:14-16 (red vs wh), 3H: 5-5 inv 3S: 5-5 GF, Jacoby-Over-2NT, Texas-Over-2NT System-On-Over:dbl or 2C, 2NT-3S:minor slam try, Stayman Note2:2D-2H-2S=slamy styman, 2D-Xfer-To-H, Texas 3NT:minor suit , Smolen, 3NT-Note:pre-emptives, 2H-Xfer-To-S Lebensohl, Leb-Deny:Fast, 2S:2N/3C like D/C, Neg-X NegX-Desc: 1N-2D-X, 1NT-2NT:10-11 inv, Other:Penalty X->H/S Conv-Open:1N-X(opp)-?useDONT Majors Seldom-4-Cards-1&2, Seldom-4-Cards-3&4, Double-Raise-Weak JR-In-Comp-Weak, 2NT-Conv-Raise, Splinters, 2NT-Forcing 2NT-Desc:1M-4C=RKC, 3NT-Desc:13-15;1M-4D=Mraise;Serious3N Reverse-Drury, 2-Way-Drury, Note:Bergen 3C(7-9)3D(10-12) Minors 1C-Artificial, 1D-Shows-3+, Double-Raise-Weak, JR-In-Comp-Weak Single-Raise-Forcing, Other:inv minor, 1NT/1C:8-10 2NT-Invitational, 2NT-Desc:11-12, 3NT-Desc:13-15; 1D-2M=12+ 2C Range:11-15, Desc:6 clubs or 5 clubs + 1 major, Other Resp:only forcing: 2D(stayman), 2D-Waiting 2D Range:Mutli , Desc:weak 2 in H/S or 4441 17+, Artificial 2NT-Forcing, New-Suit-NF 2H Range:10-14, Desc: 4+ S and 5+ H ( clda be 55 majors) Resp:2H-2N-3C=weak, 2NT-Forcing, New-Suit-NF 2S Range:10-14, Desc:7 card long minor 2nt ask(inv+) Resp:3C nat 4C weak, 2NT-Forcing, New-Suit-NF OtherConv New-Minor-Forcing, 4SF-To-Game Note1:WQ(at least Qxx) Str Jump Shift except after 1C HGST Note2:UnU vs UnU Stayman followed by 3C/D: to play (4-6 weak hand) Note3:1D-1y-1z: 1) 2C->2D inv or D suit 2) 2D=gf Doubles Negative, Negative-Thru:-> 4D, Responsive, Responsive-Thru:2S Support, Support-Thru:2S, Support-Redouble Overcalls Range:8-15, New-Suit-Nonforcing, JR-Weak Note:Forcing bid: cue bid and Str J Shift Jmp-Over Weak, Note: 234 rule Preempts Sound, Light, Conv-Resp:Vul NV Cuebids Major-Michaels NT-Over Direct-Range:15-18, Systems-On, Note1:transfer on Balancing-Range:11-14 pts in the 4th seat, Unusual-For-2-Lower Vs.NT Case1-Vs:strong nt, Case2-Vs:weak nt, 2C-Case1:C + higher rank 2C-Case2:forced to Dia, 2D-Case1:D + major 2D-Case2:both majors, 2H-Case1:both majors 2H-Case2:H + a minor, 2S-Case1:sps (weaker) 2S-Case2:S + a minor, Dbl-Case1:forced to 2C Dbl-Case2:15+ points, Other:DONT vs Strg NT (15 pts) Note: Capp vs Weak NT (<= 14 pts) Vs.Doubles NSF-1-Level, JS-Weak, Rdbl-Implies-No-Fit, 2NT/Majors-Limit+ 2NT/Minors-Limit+, Other:1M-X(opp)-XX:8-10 3card or 11 Vs.Preempts Takeout-Doubles, Takeout-Dbl-Thru:4H, Lebensohl, Other:std leb Slam-Bids Gerber, Roman-Keycard Note1:1st and last NT (Gerber) exclusive RKC, DOPI, DEPO Carding Special-First-Discard-Name:SmithEcho Suit-Leads xxX, 4th-Best, Std-Carding, Odd-Even, Smith-Echo Trump-Suit-Pref NT-Leads xxX, 4th-Best, Std-Carding, Odd-Even Notes Principles UnVsUn Bergen Raise with 4 cards Splinter bid: any ambigous bids are splinters Over pd's overcall: Jump to a new suit means: 9-14 HCP promise 2 of 3 high cards if < 13 pts Transfer after 1NT: 1NT -> 2D -> 2H -> 2S(forcing stayman) Total trick law: - support dbl & redbl: allow bidding 4 card suit - bergen Fast arrivals =========================================================================== 1C: 16+ HCP responder: 1D: 0-7 all hands except weak two 4-7 point opener: 1NT: 16-18 pts 2NT: 19-20 pts 3NT: 23-24 pts 2-level bid: 5 card suit and 22+ pts 1H/1S/2C/2D: 8+ pts and 5+ cards 1NT: 8-10 pts and balance hand 2NT: 11-12 pts and balance hand 2C/2D: 1C-2D-2N-? we use NMF style, 3C=12+ or responder rebid 3D=8-10 unbalanced or responder rebid 3M=8-10 54 2M: 2N ask short -> rebid min & no short 3C(black singleton) -> 4441 with 8-11hcp 3D(red singleton)-> 4441 with 8-11hcp 1C opener relay -> 3D/H: a) +1 lower rank singleton b) +2 higher rank singleton 3H/S/4C/D.12+..4441 with stiff below bid suit (Qbid stiff asking controls) 3NT..9+..a solid 7+ card with no side A,K 5level asking bids: 3 cases: 1> 1C -> 1N -> 2X(19+hcp) 2> 1C -> positive bid -> new suit 3> 1C -> 1D -> Jump suit bid (2M/3m) Answers: +1 no support min (8-11pts) +2 no support max (> 11 pts) +3 has support min +4 has support max 6533 asking bid for 1C-1M-2M or 1C-2m-3m 6: +1 - 5/6 cards with 0 honor +2 - 5 cards with 1 honor +3 - 5 cards with 2 honors +4 - 6 cards with 1 honor +5 - 6 cards with 2 honors +6 - 5/6 cards with 3 honors 5: then bid suit asking controls +1 - xxx +2 - Q or xx +3 - K or x +4 - A or void +5 - AQ or better 3: then bid 2nd suit asking controls +1 - xxx +2 - K or x +3 - A or void Over interference, responder: at level 1: dbl: 5-8 pts and no 5 card suit bid: 5-8 pts and a 5 card suit 1NT: 8+ pts and an unspecified 5 card suit at level 2: dbl: showing values(8+ pts) bid: 8+ pts and a 5 card suit 2NT: natural =========================================================================== 1D.11-15.2+ D suit(vul), 3+ D suit (non-vul). --------------------------------------------------------------------------- PASS..0-7.any hand 1H/S..6+hcp 4+ H/S 1NT..8-10.tends to deny 4 card major 2C/D..11+.usually 5 card suit 2NT..11-12.invitational 2M..12+.strong jump shift 3C/3D..9+.criss-cross 3NT..13-16.to play 4H/S..0-10.preemptive XYZ system .1x-1y-1z: 2C->2D=invitational and 2D=forcing ============================================================================ 1H/S.11-15.5+ card suit ---------------------------------------------------------------------------- PASS..0-7.any hand 1S..6+hcp. 4+ S tends to have 5 card spades 1NT..8-11.non-forcing 2C/D/H.11+.3+ m suit 11+ or 10hcp with 3+ M 2H(over 1S) .11+ .5+ H suit or 9-10hcp with 3+ S 2NT(Jacoby) . 13+ with 4 card M responder: - a 3-level suit: singleton or void - a 4-level suit: a good 5 card suit - rebid the suit: minimum - 3NT: extra values and no S/V 3C .7-9 with 4 card support 3D .10-12 with 4 card support 3M .4-8 .pre-emptive, rule of 234 4C ..RKC 0314 4D .10-15 .M raise any hand with def value 4M .0-8 .M raise pre-emptive, no def value 3N .11-15 .natural to play 4N .19-20 .quantitive 5C/D/H if S is trump: exclusive roman key card a) System on over 1M-X(opp) b) Serious 3N: 1M-2N-3M=weak open, 3N=seriousTry ================================================================================== 1NT.13-15 (14-16 if red vs white). ---------------------------------------------------------------------------------- Pass. .0-10..weak hand 2C. .7+..stayman 2D->2H->2S..forcing stayman..slamy (Balanced or single suited hand) 2D/H->H/S .unlimited.Jacoby transfer 2S..unlimited.Minor Suit Stayman, 2N is D better 3C/D. .4-7..45+/54+ in C/D non-forcing 3H/S. .7-9/9+..55 in H&S INV/GF 2NT..10..strong invitation, could have 4 card M 4C..15+. .Gerber 4S .0-8..to play 4D/H .0-11..Texas 4N .16..6N invitation a) Leb over 2D/2H/2S b) Penalty X over 1N-2D/2H/S by opp's c) if 1N-X(opp) is penalty: use DONT ================================================================================= 2C.12-15.5C+4M or 6C --------------------------------------------------------------------------------- Pass..0-10 2D..11+..asking further decription ..or 8-10..3 card C and a 4 card major - 2H/S.12-15..4 card suit - 2NT.14-15 ..no 4 card major - 3C.11-13 ..no 4 card major 2H/S..6-11..non-forcing 2NT..8-10..invitation 3C/4C..4-7..preempt 3D/H/S.11+..6 card invitation 4H/S..8+..to play ================================================================================= HSGT - help suit game try How to run after 1NT dbled(penalty only) . DONT . if not penalty x, system on 2NT -> 3S (minor suit slam try): forced to 3NT -> 4 minor: -> 4NT (to play) -> other bid is a cue bid (accept the slam try) Support Doubles (to 2S): dbl or redbl shows 3 card support, bid directly shows 4 cards ================================================================================= Multi - 2D: weak two in H/S or 4441 (17-24) 2H Weak hand, does not promise heart heart support. Opener can rebid 2S should he hold and type 2). 2S Inviting game in hearts if that is opener's suit, but signoff if opener's suit is spades. Opener can rebid 3H (signoff), 4H (signoff), or Pass with spades. 2NT Strong and artificial (see below). 3C 7+ clubs, signoff. 3D 7+ diamonds, signoff. 3H Hand inviting game in spades, if that is opener's suit. Opener can rebid 3S (signoff), 4S (signoff), or Pass with hearts. 4C Strong clubs with support for both majors. 4D Strong diamonds with support for both majors. Opener's responses to the artificial 2NT query are: 3C Weak two-bid in hearts, good hand. 3D Weak two-bid in spades, good hand. 3H Weak two-bid in hearts, bad hand. 3S Weak two-bid in spades, bad hand. 3NT Strong three-suited hand (17-24 HCP) with a singleton club. 4C Strong three-suited hand (17-24 HCP) with a singleton diamond. 4D Strong three-suited hand (17-24 HCP) with a singleton heart. 4H Strong three-suited hand (17-24 HCP) with a singleton spade. If responder makes an original signoff bid, any strange-sounding rebid by opener shows the strong three-suited hand. ================================================================================= 2H.10-14.4+ S, 5+ H - Flannary+ including 55 64.. ..A:.10-12 minimum hands ..B:.13-14 maximum or freak shape --------------------------------------------------------------------------------- Pass..0-10.to play 2H/S..0-10.to play 2NT..10+.asking: A type: ------ .3C.10-12 .any minimum hand B Type: ------ .3D.13-14 .4531 or 4513 .3H.13-14 .46 in majors .3S.13-14 .55 in majors .3NT.13-14 .4522 3C/3D ..to play 3D ..strong slam interest in H/S 3H/S...4+ suit, 234 rule 4C/D .15-16.minor slam interest in H/S 4H/S ..sign-off 3NT...to play ============================================================================= 2S.11-15 7 card minor suit ----------------------------------------------------------------------------- 3C.pass/correct 2N.ask further describe 3H/S natural 6 card suit 4C.pre-emptive ============================================================================= Roman Key Card: responder: . Knowing 10 cards held between us, always answer "have the Queen of the trump suit". . 5NT: one key and one unspecified void . Jump to 6 of the trumps: 2 key cards and one higher rank void . 6X(not trump): 2 key cards and X is the void suit