WBF Convention Card SYSTEM SUMMARY

Transcription

1 DEFENSIVE AND COMPETITIVE BIDDING OVERCALLS (Style; Responses; 1/2 level; Reopening) OPENING LEADS STYLE LEADS AND SIGNALS 8-17 HCP (occ. light) Lead In Partner s Suit Can be 4 card at 1 level Suit 2 nd /4 th best, MUD 2 nd /4 th best, MUD Responses: New suit forcing; CUE = LR+ [30]; NT 2 nd /4 th best, MUD 2 nd /4 th best, MUD WBF Convention Card NCBO Logo & Coloured Sticker: PRE DBL RAISE Subseq Standard Remaining Count Standard Remaining Count CATEGORY: Green: NATURAL Last Updated: Reopening: Aggressive Other: 0/1 lead NCBO: HKCBA EVENTS: ALL 1NT OVERCALL (2 nd /4 th Live; Responses; Reopening) A for ATT; K for CT lead in 5+ suit contract and returning trick(s) LEADS HCP Lead Vs. Suit Vs. NT PLAYERS: Niko Pui-Yi MAN / Brian Ho-Yin TANG SYSTEM SUMMARY Full system on Ace AKx(x), Ax AKx(x) GENERAL APPROACH AND STYLE King KQx(x), Kx, AK KQx(x), AK 2 over 1 Game Force For all sequences that 2NT shows a balanced strong hand, Queen QJx(x), Qx QJx(x), AQJx(x) Prepare [1], Five-card major, Strong NT Full system on Jack JTx(x), Jx JTx(x), HJTx(x) Opening may be light at 3 rd seat JUMP OVERCALLS (Style; Responses; Reopen) 10 (H)T9x(x) (H)T9x(x) 12+ HCP openings for balanced hands; could be lighter for unbalanced 1-Suit: Preemptive 9 9x 2-Suit: 2NT: Lowest Unbid 2 suits [34] Hi-x Xx, xxxx Xxxx, Xxx Lo-x xxx, HxX HxX 1NT Opening: HCP, Bal/Semi-bal hand SIGNALS IN ORDER OF PRIORITY 2 OVER 1 Response: Absolute Game Force DIRECT and JUMP CUE BIDS (Style; Responses; Reopen) Partner s Lead Declarer s Lead Discarding SPECIAL BIDS THAT MAY REQUIRE DEFENCE 2-level CUE= Michaels [34] 1 Attitude Count Attitude 1. Transfer response after 1 opening [2] 1m-2m= + Suit 2 Count Attitude Suit Preference 2. Inverted Minor [3] 1M-2M=unbid major + either minor 3 Suit Preference 3. XYZ Convention [13] VS. NT (vs. Strong / Weak; Reopening; PH) 1 Attitude Count Attitude 4. Gazilli [14] Non-passed Hand: Passed Hand: NT 2 Count Attitude Suit Preference 5. Weak 2 / / [21] 2 = + (4-4+) 2 = +unknown suit (4-4+) 3 Suit Preference 6. 3NT = Both Majors PRE [25] 2 =One major 2 = +major Carding: UDCA, standard suit preferences 7. Transfer response after 1M - (2oM) and Michaels Cuebid [29] 2 = +minor 2 = + Single sided reverse smith echo for NT contracts 8. Negative Free Bids at 2 level [31] 2 = +minor 2 =Natural Open leader reverse smith echo 9. LEBENSOHL [32] 2NT= + X=PEN [27] 2NT= + X=any 1-suiter [28] Open leader s partner standard smith echo 10. Kokish Defense against Multi 2 opening [33] VS 2NT Opening: Natural Standard remaining count 11. SANDWICH for passed hand [34] VS. PREEMPTS (Doubles; Cue-bids; Jumps; NT bids) TAKEOUT DOUBLES (Style; Responses; Reopening) 12. Unusual versus unusual after U2NT [36] Below 4 : X=T/O Jumps = Leaping Michaels [35]; CUE = Ask Stop 2NT=15-18 Balanced hand; 3NT=To Play VS. ARTIFICIAL STRONG OPENINGS Natural Emphasize majors, minor unclear Response: New suit non-forcing; CUE = LR+, any shape Aggressive Reopenings SPECIAL, ARTIFICIAL AND COMPETITIVE DOUBLES/REDOUBLES NEG DBL thru 3 NO SUPP DBL Maximal and Game try DBLs SPECIAL FORCING PASS SEQUENCES 1 -(X)-XX: Forcing till 2NT 1M-(X)-XX: Forcing till 2M OVER OPPONENTS TAKEOUT DOUBLE Responsive DBLs After penalty oriented X or XX New suit = NF, Jump = PRE, XX = Strength [31] Against bid and raise below 4 : DBL=T/O oriented IMPORTANT NOTES THAT DON T FIT ELSEWHERE DBL raise = PRE; 1M-(X)-2NT = LR+, Support; 3m = INV 1 - (X) XX = Transfer to, else system on In unclear situation, we may not pass PSYCHICS: Random, Seldom; May open/overcall off-shaped 1NT; Tactical bids after preempts

2 OPENING TICK IF ARTIFICIAL MIN. No. OF CARDS NEG. DBL THRU DESCRIPTION RESPONSES SUBSEQUENT AUCTION PASSED HAND BIDDING HCP, no 5cM Inverted minor: 2 = GF; 3 = PRE [3] NT - 2X = INV Inverted minor off 1 / = 4+ / ; 1 = weak/inv; 1NT = GF 1-1NT 2 = Min 1-2M = Maximum hand 2 = NF; 2 / = WJS; 3 / / = PRE HCP, no 5cM Inverted minor: 2 = 10+ HCP, F1; 3 = PRE [3] /2 /3 = Value, Game Force Inverted minor off 2 /2 = WJS; 3 = INV NT/3 = NF 1-2M = Maximum hand 1NT = 6-10 HCP, NF; 2NT = inv to 3NT 1-1M-4 = Picture bid HCP [7] 1NT = F1 [6]; 2NT=4+ SUPP, LR+ [7]; = Short suit game try, Relay to 2NT [9] 2-way Reverse Drury [10] 2 = 5+ and 3 [8] NT/3 /3 = Help suit game try 1-3 /3 = fit jump shift 3 /3 = BER [4]; 3 = Any Singleton Splinter XYZ, Gazilli [12] XYZ on [11] 3NT=Good PRE in or void SPL in 4 / = Void Splinter, 2/1 = GF [13]; 4 = T/P HCP 1NT = F1; 2NT=4+ SUPP, LR+; NT = Short suit game try, Relay to 3 2-way Reverse Drury 3 / = BER [4]; 3 = Any Singleton Splinter /3 /3 = Help suit game try 1-3 /3 = fit jump shift 3NT=Good PRE in or void SPL in XYZ, Gazilli 1-2 = NF 4 / = Void Splinter, 2/1 = F1, 4+ suit; 4 = T/P 1NT HCP 2 = STAY [14]; 2 = TRF or Walsh Relay [15] 1NT-(X)-Pass = Force to XX (open can pass), then DONT [17] No 5cM, can have 6cm 2 = TRF; 2 = MSS or weak or weak both minors 1NT-(X)-XX = Transfer to 2 2NT = weak or any 4441 GF; 3 /3 = INV Smolen 3 /3 = 5-5+M, INV/GF; 4 = Gerber; 4 /4 = TRF [16] 2 YES Strong Hand 2 = 5-7 HCP; 2 = 8-9 HCP; 2 = 0-4 HCP ) 22+ 2NT = 10+ HCP; 3 suit = 2-3 Top Honours; 2) 8.5+ Playing Tricks 3NT = Any 6+ solid suit [18] Weak (11-14 HCP, 6+ at 4th seat) 2 lvl new suit = NF 2NT = Modified Ogust 3 lvl new suit = GF [19] 2NT HCP Bal/Semi-bal 3 = ROMEX [20]; 3 / = TRF [21]; 3 = MSS [22] 3NT = Relay to 4 ; 4 = Ms; 4 / = TRF XYZ on New suit NF 3 suit 6 PRE New suit F1 New suit NF 3NT YES 6-5+ Majors, PRE 4 = S/T; 4 = Pick M; 4M = T/P; 4NT = RKC [23] 4m 6 PRE 4M 6 To Play 4NT = RKCB HIGH LEVEL BIDDING 4NT YES 65+ minors, PRE 5-7m = To Play RKC (14, 03), 5NT ask lowest King [24] SSA after RKCB [26] 5 = Ask for major first round control; 5NT = GSF Q ask no Q: return to trump 5M invite mostly based on trump quality 5 / 7 To Play -- with Q: bid lowest King, or 5NT or 3 rd round controls 5/6M YES Grand Slam Force 6M = 1 Top Honor; 7M = 2 Top Honors D0P1 for interference [25] Splinters exclude singleton A or K 5NT Grand Slam Force

3 [1] Opening Bids [2] Transfer Response 1 : HCP, 2+ cards 1 : HCP, 4+ cards 1 : HCP, 5+ cards 1 : HCP, 5+ cards 1NT : 15-17, else Balance hand, may have 5 cards major or 6 cards minor 2 : 1) Strong Hand, playing tricks 2) 22+ HCP, any hand 2 : 1) Weak, 5+ cards, 5 bad 11 HCP 2) HCP, 6 card+ at fourth seat 2 : 1) Weak, 5+ cards, 5 bad 11 HCP 2) HCP, 6 card+ at fourth seat 2 : 1) Weak, 5+ cards, 5 bad 11 HCP 2) HCP, 6 card+ at fourth seat 2NT : HCP, Balanced hand 3 suit : Pre-emptive, 6 cards + 3NT : Any 6-5 Majors Preemptive 4 : Pre-emptive, 7 cards + 4 : Pre-emptive, 7 cards + 4 : To Play 4 : To Play 4NT : 6 5+ in minors, Preemptive After 1 opening: 1 : 4+ card 1 : 4+ card 1 : 1) 6 9 HCP, no 4 card major 2) Invite hand without 5 card major 1NT : GF hand without 5 card major After 1-1 : 1 : 3+ card, HCP 1 : 4+ card 2 / : Reverse, GF 2 : 4+ card, good 12 bad 15 HCP, unbalanced hand 3 : Mini-Splinter, Invite+ 3 : 4+ card, 15+ HCP After 1-1 : 3 : Mini-Splinter, Invite + Others : Same After 1-1 : Any bid : Natural After NT: 2m : 5 card, invite 2M : 4 card, invite After 1-1NT: 2 : Any minimum 2 / / : Reverse P.1

4 After : 2NT : Ask for shortage 3 / / : Splinter After NT: 3 : 6 card Then 3 is further asking: 3 : Shortage 3 : Shortage 3 : Shortage 3 : Shortage After : 2 : Ask for shortage 2NT : Splinter 3 / : Splinter After : 2NT : 6 card Then 3 is further asking: 3 : Shortage 3 : Shortage 3 : Shortage 3 : Shortage Transfer response is not affected by X by opponent [3] Inverted Minor 2 response over 1 opening shows: i. 5+ card ii. GF After 1-2 : 2 : 2 3 cards 2 / : 4 cards 2NT : Balanced 3 : Unbalanced, 14+ HCP 3 / / : Splinter, HCP 4 : RKCB 4 / / : Exclusive RKCB 2 response over 1 opening shows: i. 4+ card ii. LR+ After 1-2 : 2 / /3 : Value showing, GF 2NT : Minimum, balanced hand 3 : Minimum, unbalance hand 3 / /4 : Splinter 4 : RKCB 4 / /5 : Exclusive RKCB P.2

5 3NT : 1) Shapeful Raise in, 6-7 losers [4] Bergen Raise 2) Void Splinter in 4 / : Void Splinter in / After 1-3 : 4 : Preempt 3 : General game try 4 : To Play After 1-3 : 3 : Ask for shortage Opener then bid : 3NT/4 /4 : Shortage in / /om After 1-3 : 3 : General game try 3 : Help suit, game try After NT : 4 / / : Singleton in / / After 1-3 : 3 : Relay Responder then bid: 4 / / : Singleton in / / [5] Major Raise After 1 opening: 2 : 3+ cards, 6-9 HCP 2 : 5+ cards and 3 cards, INV+ 2NT : 4+ cards, 10+ HCP any shape, Modified Jacoby 2NT 3 : 4 cards +, good 6 bad 9 HCP, without shortness 3 : 4 cards +, good 6 bad 9 HCP, with shortness 3 : Preempt 3 : HCP, any singleton Splinter, then 3NT relay for shortness After 1 opening: 2 : 3+ cards, 6-9 HCP 2NT : 4+ cards, 10+ HCP any shape, Modified Jacoby 2NT 3 : 4 cards +, good 6 bad 9 HCP, without shortness 3 : 4 cards +, good 6 bad 9 HCP, with shortness 3 : HCP, any singleton Splinter, then 3 relay for shortness 3 : Preempt 3NT : 1) Shapeful Raise in, 6 7 losers 2) Void Splinter in 4 / : Void Splinter in / 4 : To Play 4 : Preempt After 1M - (X) : XX : Strength 2X : NF 2M : Courtesy Jump om: Mixed Raise 2NT : Modified Jacoby 2NT 3m : Fit Jump Shift P.3

6 [6] Forcing 1NT [7] Modified Jacoby 2NT After 1-1NT : 2 : Gazilli 2 : 4 cards +, except : 6 cards + 2 : Normally 4 cards +, Reverse 2NT : Any 6-4 shape, GF 3 / : HCP, 5-5 shape 3 : HCP, 6+ card suit 3 : 6 cards, 5 cards, minimum hand 3NT : Running 4 / : 5 cards + and 6 cards / 4 : To Play After 1M 2NT : 3 : Any Singleton, Relay to 3 After 3 : 3 : Minimum; 3 further ask 3 /3NT/4 : Shortage in / /om 3 : Any 5422, non-minimum, Relay to 3 After 3 : 3 /3NT/4 : 4 cards in / /om 3M : Minimum 3oM : shape, Non-minimum 3NT : Non-serious 4m : Decent 5 cards suit After 1-1NT : 2 / : 4 cards + 3 : HCP, 5-5 shape 3 : Invite 3NT : Running Others same as 1-1NT After 1M 2NT 3 / : 1 st step : Relay 2 nd /3 rd /4 th step : Splinter in / /om, 15+ HCP After 1-1NT 2 : 2 : Invite with 4 cards, forcing 1 round 3 : Invite with 5 cards P.4

7 [8] Development over 1-2 [10] 2-way Reverse Drury After 1-2 : 2NT : Relay Then responder bid : 3 / : Shortness 3 : Catch all 3 : 2-3 cards with at least 1 top honor 3NT : 2-3 cards without top honor 4 / : Cuebid 3 : Invite hand 3 : 5 cards+ with at least 2 top honors 3NT : Non-minimum 4 : To play 3 /3 : 5 cards+ suit 3 : To play 3 : Slam try 3NT : 1 top honor in 3NT : Semi-solid in 3 : 4 cards+ [9] Short Suit Game Try After 1 2 : 2 : Short suit game try, relay to 2NT Responder then bid: 3 / / : Shortage in / / 2NT/3 / : Help suit game try in / / 3 : NF Jump : Splinter After p 1 : 2 : Maximum, 3 cards 2 : Maximum, 4 cards + 2 : Mixed Raise 3 / : Fit Jump Shift 2NT : Invite, promise Hx in 3 : Pre-emptive After p 1 : 2 : suit, Maximum pass 3 : Mixed Raise After p 1M (X) : XX : Maximum, may have 3 cards M 2 / : NF 2NT : Maximum, 4 cards +M 3 / : Fit Jump Shift After p 1M - 2 / : 2M : Minimum 2M next step : Short suit game try Others : Help suit, game try After p 1M /2M : New suit : 5 cards + good suit After p 1M - 2-2M : New suit : Natural Same for 1-2, Bid count by step P.5

8 4 /4 : Set as trump, Splinter, 15 + HCP [11] XYZ Forcing Bid B) When Z is 1NT (ie. Cases 3, 5, 7, 8) When 3 different strains are named by our side in 1 level in the first 3 bids, the XYZ In the following sequences, responder set Y as trump convention will be on, including the following: NT NT NT NT Under interference, under certain circumstances, the convention will be on: 1. Y shows a 4+ card suit 2. Z is being completed in 1 level (X and XX are not considered as complete) When the convention is on: 2 : Any invite hand, Puppet to 2 Then responder bid: Pass : To Play Others : Invite 2 : Any GF hand 2NT : Puppet to 3 Then responder bid: 3 / / : GF After NT : 3 : Set as trump, GF After NT : 3 /4 /4 : Set as trump, Splinter, HCP 4 : Set as trump, mild slam try C) When Z shows a fit (ie, Cases 1, 4) After : 3 /4 /4 : Splinter, HCP After : 3 /4 /4 : Splinter, 15+ HCP D) Responder invites with balanced hand After X Y Z 2-2 : 3NT : Choice of game, shape 4NT : Invite to slam, shape Some Special Sequences A) When Z is a new suit (ie, Cases 2, 6) After : 3 : HCP, 4 card 4 /4 : Set as trump, Splinter, HCP After Any: 3 : 15+ HCP, 4 card P.6

9 [12] Gazilli After 1-1 ; 1-1NT; 1-1NT, Opener rebid 2 is Gazilli After : 2 : 8+ HCP 2 : HCP, 4 cards + 2 : GF, relay to 2NT 2 : 17+ HCP 2NT : Relay 3 / : 4 cards / 3 : 6 cards + with 3 cards 3 : 4 cards 3NT : HCP, balance with 3 cards 2NT : HCP, balance 3 : 5 cards 3 / : 5 cards + /, 17+ HCP 3 : 6 cards +, 17+ HCP, without 3 cards 3NT : HCP, balance without 3 cards 2 : Sign off 2 : 3 cards, GF 2NT : Puppet to 3 (AlanB 2NT) 3 : Relay 3 : 4 cards, GF 3 : 4 cards, GF 3 : 5 cards +, GF 3 : 5 cards +, GF 3 : 6 cards + without 3 cards, GF 2 : Sign off 2NT : Catch all 3 : Sign off in After 1-1NT 2 : 2 : 8+ HCP 2 : HCP, 2 cards + 2 : INV, 4 cards + 2NT : INV, balance 3 : 5 cards +, 8 10 HCP 3 : 6 cards +, 8 10 HCP 2 : 4 cards m, GF 2NT : Relay 3 / : 4 cards / 2NT : HCP, balance 3 / : 5 cards + /, GF 3 : Hx in, GF 3 : 5 cards + and 5 cards +, GF 3 / : 5 cards + /, 17+ HCP 3 : 6 cards +, 17+ HCP 3 : No Such Bid 3NT : HCP, balance 2 : Sign off 2 : 4 cards, Sign off 2NT : 5 cards, Sign off 3 : 5 cards +, Sign off 3 : 6 cards +, Sign off 3 : Limit Raise with 3 cards P.7

10 After 1-1NT 2 : 2 : 8+ HCP 2 : GF 2 : Relay 2NT : HCP, balance with 3 cards 3 / : 4 cards / 3 : 4 cards 3 : 6 cards + with 3 cards 2 : HCP, 2 cards + 2NT : INV, balance 3 : 5 cards +, 8 10 HCP 3 / : 6 cards + /, 8 10 HCP 2NT : HCP, balance without 3 cards 3 / / : 5 cards + / /, GF 3 : Hx in, GF 3 / / : 5 cards + / /, 17+ HCP 3 : 6 cards +, 17+ HCP, without 3 cards 3NT : HCP, balance without 3 cards 2 : Sign off 2 : Sign off 2NT : Catch all 3 : 5 cards +, Sign off 3 : 6 cards +, Sign off 3 : Limit Raise with 3 cards [13] 2/1 Game Force After 1-2 : 2 : Catch all 2 : Reverse 2NT : OR balanced hand, no 3 cards 3 : 4+ card, non-minimum 3 / : Splinter 3 : Set trump, Slam try 3NT : Solid suit After 1-2 : 2 : Catch all 2NT : OR balanced hand, no 3 cards 3 / : 5+ cards suit, non-minimum 3 : 4+ cards, non-minimum 3 : Set trump, Slam try 3NT : Solid suit 4 / : Splinter After 1-2X - 2 : 2NT : Catch all, mostly ask for 2 nd suit / 6 cards / Hx in 3 new suit : 5+ cards 4 / : Splinter After : 3X : Value OR Extra length P.8

11 [14] Stayman and Smolen After 1NT - 2 : 2 : No 4 cards major 2 : 4+ cards, may have 4 cards 2 : 4+ cards + After 1NT : 2 : 1) Invite without 4 cards 2) Slam try in 2NT : 4 cards, Invite to 3NT/4 3 / : 5 cards + minor and 4 cards, GF 3 /4 /4 : Splinter After 1NT (X) : Pass : No convenient bid XX : To play 2 / / : 4 cards + After 1NT : 2 / : NF 2NT : Invite to 3NT, may have no 4 cards major, may have 5-4 majors 3 / : 5 cards + minor with unknown 4 cards major, Slam try 3 : 5+ cards and 4 cards, GF 3 : 5+ cards and 4 cards, GF 4 : 6+ cards and 4 cards, no slam interest 4 : 6+ cards and 4 cards, no slam interest After 1NT NT : 4 : , Mild Slam try 4 : , Mild Slam try 4 : Transfer to 4, 6 cards and 4 cards, Mild Slam try After 1NT NT : 4 : , Mild Slam try 4 : Transfer to 4, 6 cards and 4 cards, Mild Slam try 4 : , Mild Slam try After 1NT : 2NT : Invite to 3NT, may have no 4 cards major 3 / : 5 cards + minor and 4 cards, Slam try 3 : Slam try in 4X : Splinter [15] Jacoby Transfer and Walsh Relay After 1NT - 2 : 2 : Normal accept 2 : Only bid to super-accept, 4+ cards After 1NT : 2 : Walsh Relay, opener have to bid 2NT 2NT : suit Then Opener bid: 3 / : Weak doubleton 3 : Accept transfer 3 / : 2 nd suit, GF 3 /4m : Splinter 4 : Mild Slam try in P.9

12 After 1NT NT : 3 / : 6+ cards good / suit, GF Then opener bid weak doubleton at 3 level 3 / : 6+ cards broken / suit, GF After 1NT : 3 / : 6+ cards good / suit, GF Then opener bid weak doubleton at 3 level 3 / : 6+ cards broken / suit, GF After 1NT - 2 : 2 : Normal accept 2NT : 4+ cards, maximum hand 3X : 4+ cards, weak doubleton in X 3 : 4+ cards, minimum hand After 1NT - 2 / - (X) : Pass : No 3 cards / Responder then bid: XX : STR, subsequence X suggest Penalty, NF 2 / : NF XX : 5 cards + / 2 / : 3 cards / [16] Minor Stayman After 1NT - 2 : 2NT : No 4 cards + minor 3 : 4 cards +, may have 4 cards 3 : 4 cards + After 1NT - 2-2NT : 3 : at least 5 5 minors, NF 3 : 6 cards +, NF 3 / : Any 5 4+ minors, shortness 4 : 4 cards and 6 cards, Slam try 4 : 4 cards and 6 cards, Slam try After 1NT : Pass : To Play 3 : 6 cards +, NF 3 / : Cue-bid 4 / / : Splinter After 1NT : Pass : 6 cards + 3 / /4 : Cue-bid 4 / : Splinter After 1NT 2NT - 3 : Pass : 6 cards + 3 / / : Shortness, GF 3NT/4 : Shortness in, Mild Slam try/serious Slam try After 1NT - 3, then any bid is Stop Bid! P.10

13 After 1NT - 3 : 4 / : Slam try in / 4 / : To play 4NT : 6 cards RKCB Responder then bid: 5 : 1/4 KC 5 : 0/3 KC 5 : 2 KC 5 : 2 KC with 1 Q 5NT : 2 KC with 2 Q Gerber [17] Escape after 1NT (X) After 1NT (X)/(1X) 1NT (X) : Pass : Basically force to XX (Opener can pass), then: Pass : To Play 2X : D.O.N.T. XX : force to 2, then: Pass : 5 cards + 2 : 5 cards + 2 : 4 cards and 6 cards + /, constructive 2 : 4 cards and 6 cards + /, constructive Others : System On After 1NT - 4 : 4 : 0/4 A 4 : 1 A 4 : 2 A 4NT : 3 A After 1NT (p) p (X) p (p)/(1x) - 1NT (p) p (X) p (p) : XX : S.O.S. 2m : 5 cards + 2 : Majors Texas Transfer After 1NT - 4 / - 4 / : 4NT : RKCB New suit : Exclusive RKCB P.11

14 [18] Strong 2 Opening [19] Weak 2 Opening 2 : 5-7 HCP discounting J, or 1 Ace Then Opener bid: 2M : Forcing to 3M 2NT : 22+ HCP, balance hand 3X : GF 2 : 8-9 HCP discounting J 2 : 0-4 HCP discounting J, promise no Ace 2NT : 10+ HCP discounting J 3X : 6+ card suit headed by 2 top honors 3NT : Any 6 cards + solid suit If interfered by X or at 2 level, then: XX/X : 0-4 HCP discounting J, promise no Ace Pass : 5-7 HCP discounting J, or 1 Ace Bid : 8-9, 10+ HCP discounting J (up to 3 ) Others : Natural If interfered by 3, then: X : 0-4 HCP discounting J, promise no Ace Pass : 5-7 HCP discounting J, or 1 Ace 3 : 8+ HCP discounting J Others : Natural If interfered by 3 or above, then: X : 0-7 HCP discounting J Pass : 8+ HCP discounting J Bid : Natural Opening of 2 / / is weak 2, preemptive i. 5+ cards ii. 3 8 HCP when non-vul; 6 11 HCP when vulnerable After 2 / / opening: New suit at 2 level : 1) NF when non-vulnerble, can be lead-directing 2) F1 when vulnerable, can be lead-directing 2NT : Modified Ogust Then opener bid: 3 : Bad suit, No side control 3 : Bad suit, At least 1 side control 3 : Good suit, No side control 3 : Good suit, No side control New suit at 3 level : GF Raise at any level : To Play 4 : RKCB 4M : To Play 4NT : Ask for Aces (NOT Keycard) New suit NF after non-vulnerable 3 preempt New suit F1 for other 3 level preempts After partner introduce new suit after preempt: Rebid own suit : Minimum, no support NT : Hx support Raise : Good support All new suit NF if preempt bid being X This is same for preemptive overcall P.12

15 [20] Romex Stayman [21] Jacoby Transfer 3 response over 2NT opening/overcall is ROMEX Stayman After 2NT 3 : 3 : No 5 card or 4 card 3 : 4+ card 3 : 5 card 3NT : 4-4 major After 2NT 3-3 : 3 : Ask for holding Then, opener bid: 3 : 3 card 3NT : 2 card 4 / / : 4 card, cuebid 4 : 4 card 3 : Ask for holding 3NT : No 3 card 4 / : 3 card, cuebid 4 : 3 card, minimum After 2NT 3-3 : 3 : Ask for holding, OR Slam try Then, opener bid: 3NT : No 5 card 4 / : 5 card, cuebid 4 : 5 card, minimum 4 / : 4+ card suit, GF After 2NT 3-3 : 4 / : 4+ card suit, GF After 2NT 3 / : 3 / : Normal accept Other bid: Super-accept with 4 cards, cuebid 3NT : Super-accept with 3 cards 4M : Super-accept with 4 cards, minimum After 2NT 3 / - 3 / : om : Slam Try with 6+ card suit 4 / : 4+ cards suit, GF After 2NT / : Cuebid : Fit [22] Minor Suit Stayman After 2NT - 3 : 3NT : No 4 cards minor 4 / : 4 cards Then Responder bid: 4X : Cue-bid, Slam try 4NT : 6 cards RKCB After 2NT - 3-3NT : 4 / : 5 cards / and 4 cards + /, Slam try Then Responder bid: 4X : Cue-bid, Slam try in / 4NT : To play After 2NT - 4 / - 4 / : 4NT : RKCB New suit : Exclusive RKCB P.13

16 After 2NT 3NT - 4 : 4 : 6 cards +, Slam try 4 / : Cue-bid, 6 cards +, Slam try 4NT : Force to bid 5 5 : To play, no slam interest [23] 3NT Opening After 3NT opening: 4 : Puppet to 4D, Slam try in either major 4 : Pick major 4 /4 : To Play After 3NT (X) : Pass : No convenience bid XX : STR, subsequence X suggest Penalty Others : Same [24] RKCB After trump setting, 4NT is Roman Key Card Blackwood, then: 5 : 1/4 KC 5 : 0/3 KC 5 : 2 KC without trump Q 5 : 2 KC with trump Q 5NT/6 : 1 KC/2 KC with working void After 5 / response: +1 Rank : Trump Q asking, then: Trump : No trump Q 5NT : have trump Q, no side K Side suit : have trump Q, lowest side K P.14

17 After 5X response: 5NT : Lowest K asking, or Grand Slam try, promise have all key cards New suit : Specific Suit Ask 1 step : Q/xx 2 step : Kxx(x) 3 step : Kx 4 step : Singleton Trump : No 3rd round control [25] DOP1/DEPO If 4NT RKCB is interfered by X/5 /5, then: XX/X : 1/4 KC Pass : 0/3 KC 1 step : 2 KC 2 step : 2 KC with trump Q 3/4 step : 2 KC/1 KC with working void If 4NT RKCB is interfered by 5 or higher, then: X : 0 KC or even number Pass : 1 KC or odd number [26] Specific Suit Ask After response to 4NT, new suit except first available bid is SSA. Response as follows: 1 st step : No 3 rd round control 2 nd step : 3 rd round control 3 rd step : 2 nd round control 4 th step : 2 nd and 3 rd round control 5 th step : KQ(x) [27] Modified Cappeletti If non-pass hand and opponent open 1NT, for direct seat overcall: X : Penalty 2 : At least 4 4 majors 2 : Any 6 cards + major 2M : 5 cards +M and 4 cards + /, then 2NT : At least 5 5 minors 3X : Natural After (1NT) - 2 : 2 : Same length in majors, or invite without good majors support 2 / : / is longer 2NT : Invite+ asking 3 : longer, maximum 3 : longer, maximum 3 : longer, minimum 3 : longer, minimum 3NT : 5 5, maximum 3 / : Pre-emptive After (1NT) : 2 /3 : Invite with 3 cards / 2NT : Invite without good majors support, NF After (1NT) : 2NT : Invite without good majors support, NF 3 : Invite with 3 cards After (1NT) - 2 : 2M : Pass or Correct 3m : Natural, F1 P.15

18 After (1NT) 2M : 2NT : Ask for minor 3 : Invite in minor Then Openier bid: Pass/3 : Minimim / 3 /3 : Maximum / 3 : Invite in M [28] D.O.N.T. If passed hand and opponent open 1NT, OR at balancing seat overcall: X : Single-suiter 2 : + unknown suit (At least 4 4) 2 : + unknown major (At least 4 4) 2 : + (At least 4 4) 2 : suit 2NT : + [29] After Opponent 2oM Over 1M Opening or Michaels Cuebid After 1 - (2 ): 2NT : suit, invite+ 3 : suit, invite+ 3 : Limit Raise+ in 3 : Mixed Raise, 6-9 HCP, 4 card+ support 3 : Preempt After 1 - (2 ) - 2NT: 3 : Deny Invite Responder then bid: 3 : Ask for stopper, GF 3 : Hx in, GF 3 / : Natural, GF 3 : Ask for stopper, GF After 1 - (2 ) - 3 : 3 : Deny Invite Responder then bid: 3 : Ask for stopper, GF 3 : Hx in, no stopper in, GF 3 : Ask for stopper, GF 3 : Natural, GF After 1 - (2 ): 2NT : suit 3 : suit 3 : Limit Raise+ in 3 : Mixed Raise, 6-9 HCP, 4 card+ support P.16

19 After 1 - (2 ): 2NT : suit, invite+ 3 : suit, invite+ 3 : Limit Raise+ in After 1 - (2 ): 2 : Mixed Raise, 6-9 HCP, 4 card+ support 2NT : suit 3 : suit 3 : Limit Raise+ in After (1 ) (P) : 1NT : Constructive 2 : Limit Raise or better in 2 / : Constructive, NF 3 : Mixed Raise, 6-9 HCP, 4+ cards support 3 / : GF 3(+) : Preempt This applies to opening and overcall of any two different suits. After 1m - (2m): 2M : Ask for stopper 2NT : suit/support, invite+ strength 3 : suit/support, invite+ strength 3 : GF in opener s minor, No singleton/void 3M : Splinter After (1 ) (1 ) : 1NT : Constructive 2 (closest cuebid) : Limit Raise 2 (next close cuebid) : Mixed Raise, 6-9 HCP, 4+ cards support 3 / : Ask for stopper This applies whenever the first three suits are all different. Bidding after 2NT/3 same as 1 - (2 ) [30] Limit Raise and Mixed Raise After 1 - (2 ) : X : 4+ cards 2NT : 3 cards support, Limit Raise or better 3 : 4+ cards support, Limit Raise or better 2 / : NF 3 : GF 3 : GF with good suit 3(+) : Preempt This applies to opening and overcall whenever the two suits are in different rankings. (Neither both are majors nor both are minors.) P.17

20 [31] Against Opponent Takeout Double/Overcall [32] Lebensohl If partner open 1 and opponent X, then: System on, see [2] If partner open 1 / / and opponent X, then: XX : 1) 10+ HCP, subsequence X is take out 2) Forcing pass through 2 1 level new suit : Forcing 1 round 1NT : Good raise 2 level new suit : NF 2 level raise : Weak support 3 level new suit : Natural invite 2NT : 4+ cards support, invite or better Double raise : Pre-emptive After opponent overcall, then: X : Negative Double 1NT : Good raise 1 level : Forcing 1 round 2 level : NF 3 level : GF Cue-bid : F1 After 1NT (2X) : X : Strength 2 level : NF 3 level : GF 3X : 1) Stayman without stopper in X if 2X is real suit 2) GF with 5 cards + if 2X is Convention 2NT : Lebensohl, Forcing to 3, then: Pass : suit sign off 3 : suit sign off 3 / : Invite 3X : 1) Stayman with stopper in X if 2X is real suit 2) sign off/invite with 5 cards + if 2X is Convention 3NT : No 4 cards major, promise stopper in X 3NT : No 4 cards major, not promise stopper in X 4 / : Texas Transfer After 1NT (3X) : X : Take-out New suit : GF 4X : Stayman Remarks : Texas Transfer is up to 3 overcall P.18

21 After (2X) X/(2X) p (p) - X : 2 level : NF 3 level : GF 3X : 4 card major, not promise stopper in X, GF 2NT : Lebensohl After relay to 3 : Lower ranking suit : To Play Higher ranking suit : Invite Cuebid : 4 card major, promise stopper in X, GF 3NT : Promise stopper 3NT : No 4 card major, not promise stopper in X Lebensohl is on after 1A - (2B) - P - P -X [33] Against Opponent Special 2 level Openings VS Multi - 2 When 2 shows weak either major, with or without strong case X : 1) HCP, balanced 2) 19+ HCP, balanced 3) 17+ HCP, one-suiter hand 2 /2 : Take-out, shortage 2NT : HCP, balanced Responder : System On 3X : 6+ suit (rarely 5), HCP 3NT : To Play, often based on long running minor 4 : + minor 5 5 +, 5 losers or less 4 : + minor 5 5 +, 5 losers or less 4NT : 5-5 +, 5 losers or less 5m : To Play After (2 ) P (2 ): X : Take-out in 2 /3 : Natural 2NT : HCP, balanced After (2 ) P (2 ): X : Take-out in 2NT : HCP, balanced 3 / : Natural After (2 ) P (2 / ) P - (P): X : Take-out P.19

22 After (2 ) X 2 level : NF 3 level : GF 2NT : Lebensohl 3 : HCP, balanced hand 3X/4 : 17+ HCP, one-suiter hand 3NT : 19+ HCP, balanced hand [35] Leaping Michaels After opponent open weak 2 major: 3M : Stopper asking 4m : 5-5+, minor + om, powerful hand 4M : om + unknown minor, very serious slam try 4NT : 5-5+ minors VS 2 = weak or STR balance hand X : General take-out, OR strong one-suited major 2 : Takeout in Others : Natural VS 2 = weak both majors 2 /2 : Take-out, shortage Others : Natural [36] Unusual VS Unusual (Only after Unusual 2NT) X : Penalty in at least one suit (Followed by one round of forcing pass) Cue-low : GF in 4 th suit Cue-high : Invite or better partner s suit Others : Compete, NF [34] Two-suited Overcalls i. (1m) 2m : Both majors Always true, regardless the minimum length of 1m opening ii. (1M) 2M : om + unknown minor iii. (1X) 2NT : Lowest 2 suits For (i) to (iii), shows preemptive when non-vulnerble, intermediate for vulnerable; OR powerful hand at any vulnerability iv. (1X) P (1Y) 1NT : 1) balanced hand for unpassed hand 2) Remaining 2 suits for passed hand (5 4+) v. (1X) P (1Y) 2NT : Both minors (5 5+) vi. (1X) P (1Y) 2X : Remaining 2 suits (5 4+) P.20