SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 15+ to 18 Systems on NAMES Stan Tulin -David Bakhshi Negative thru 7♥ Conv. GENERAL APPROACH Responsive : thru 7♥ Maximal Balancing: 11 to 14 Jump to 2NT: Minors 2 Lowest Support: Dbl. thru 2 levelRedbl Two Over One: Game Forcing Game Forcing ExceptWhen Suit Rebid Conv. system on Card-showing Min. Offshape T/O VERY LIGHT: Openings 3rd Hand Overcalls Preempts support after 1♣/1♦, and after 1NT DEFENSE VS NOTRUMP FORCING OPENING: 1♣ 2♣ Natural 2 Bids Other vs: any 16/ bal/ph to 15, 3rd nv SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ ♣+a major 1 suiter 1NT 2NT 20 to 21 1 level 6 to 17 HCP (usually) 2♦ ♦ + a major majors 14+ to 17 3♣ puppet stayman Puppet Stayman often 4 cards very light style 2 ♥ ♠ ♥ Transfer Responses: ♥ + + minor to 3♦ minors GF Responses 2♠ ♠ (weak) ♠ + minor Jacoby Texas 5-card Major common 3♥ short♥ 4♠ possible New Suit: Forcing NFConst NF 3 Dbl: 1 suit Pen 3♠ short ♠ no 4♥ ♠ minor, or minors Jump Raise: Forcing Inv. Weak Other System on over X/2♣ 2NT raise in comp, new suit force 2 level 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to solid major, no a/k outside JUMP OVERCALL OVER OPP'S T/O DOUBLE Forcing Stayman Smolen Strong Intermediate Weak New Suit Forcing:1 level 2 level 2♥ Transfer to ♠ Lebensohl fast/X( denies) Conventional NT Openings 2NT asks shortness, trans aft X Jump Shift:Forcing Inv. Weak 2♠ Range ask or♣ Neg. Double : 3NT opener promises Redouble implies no fit 2NT ♦ 3♣ rejects Other: transfers in comp shortness OPENING PREEMPTS 2NT Over Limit+ Limit Weak Sound Light Very Light MAJOR OPENING MINOR OPENING Majors NF 3/4-bids Minors Expected Min. Length 4 5 Expected Min. Length 4 3 0–2 Conv. Conv./Resp. depends on vul Other 1st/2nd 1♣ 3rd/4th 1♦ DIRECT CUEBID VS Opening Preempts Double Is RESPONSES RESPONSES OVER: Minor Major Takeout thru Penalty Natural Double Raise: Force Inv. Weak Double Raise: Force Inv. Weak Conv. Takeout: Strong T/O After Overcall: Force Inv. Weak After Overcall: Force Inv. Weak Lebensohl 2NT Response Michaels Conv. Raise: 2NT 3NT Splinter Forcing Raise: J/S in other minor Other: Other: 1 over = 10-12 splinter Single raise Other: SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing Frequently bypass 4+♦ exclusion (0,1,2,3), 4♣= preempt kc (0,1w/o,1 w/, 2w/o, 2w/) 2NT: Forcing Inv. to 1NT/1♣ 6 to 10+ 3NT: to 2NT Forcing Inv. 12-15toor 18+ vs Interference: DOPI DEPO Level: ROPI Drury : Reverse 2-Way Fit 3NT: 16 to 17 Other 1m-2M = both majors 1C-2D weak LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: transfers ater double, 1-3 is mixed versus Suits versus Notrump vs SUITS vs NT Standard: DESCRIBE RESPONSES/REBIDS x x x x x x x x x x x x Except to HCP x x x x x x x x x x x x x x x x 2♣ Strong Other cheaper minor X neg A K x T 9 x A K J x A Q J x 2♦ Resp: Neg Waiting Q x K T x A T 9 A 9 x K J J T Upside-Down: 5 to 10 HCP 2nt asks description/4C KCB Q J x K T 9 x K Q J x K Q T 9 2♦ count Natural: Weak Intermediate Strong Conv. 2NT Force New Suit NF J T 9 Q T 9 x Q J T x Q T 9 x attitude 5 to 10 HCP asks short/ 4♣=spec KCB K Q T 9 J T 9 x T 9 x x 2♥ FIRST DISCARD Natural: Weak Intermediate Strong Conv. 2NT Force New Suit NF LENGTH LEADS: Lavinthal 5 to 10 HCP asks short/4♣=spec KCB 4th Best vs SUITS vs NT Odd/Even 2♠ Natural: Weak Intermediate Strong Conv. 2NT Force New Suit NF 3rd/5th Best vs SUITS vs NT Attitude vs NT OTHER CARDING OTHER CONV. CALLS: New Minor Forcing: 2-Way NMF Smith Echo Weak Jump Shifts: In Comp. Not in Comp. 1♣-2♦ weak Primary signal to partner's leads Trump Suit Pref. 4th Suit Forcing: 1 Rd. Game XYZ, 2 way checkback, Bart Attitude Count Suit preference Foster Echo unusual vs unusual SPECIAL CARDING PLEASE ASK Last modified: Nov 21 2017 16:27.