SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 15+ to 18 Systems on NAMES Piotr Gawrys - Michal Klukowski Negative thru Conv. GENERAL APPROACH Balancing: 11 to 17* Responsive : thru Maximal Polish Club Jump to 2NT: Minors 2 Lowest Support: Dbl. thru 2♥ Redbl Two Over One: Game Forcing Game Forcing ExceptWhen Suit Rebid Conv. Card-showing Min. Offshape T/O VERY LIGHT: Openings 3rd Hand Overcalls Preempts DEFENSE VS NOTRUMP FORCING OPENING: 1♣ 2♣ Natural 2 Bids Other vs: weak strong SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ ♥+♠ ♣ + M 1NT 2NT 19+ to 21 1 level 6 to 17 HCP (usually) 2♦ one M ♦ + M 14+ to 17 3♣ 0-1♣ Puppet Stayman often 4 cards very light style 2 ♥ Transfer Responses: ♥ + m nat to 3♦ 0-1♦ Responses 2♠ ♠ + m nat Jacoby Texas 5-card Major common 3♥ 0-1♥ New Suit: Forcing NFConst NF 3 Dbl: points one m/both M 3♠ 0-1♠ ♠ minors, 5+4+ Jump Raise: Forcing Inv. Weak Other System on over 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to solid suit, might be M 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 ( denies) Conventional NT Openings Jump Shift:Forcing Inv. Weak 2♠ ♣/range ask Neg. Double : Redouble implies no fit 2NT ♦/both m weak Other: 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. sound V, very light NV Other 1st/2nd 1♣ 3rd/4th 1♦ DIRECT CUEBID VS Opening Preempts Double Is RESPONSES RESPONSES OVER: Minor Major Takeout thru 4♥ 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 1♣ - 2♣ nat, 1♦ - 2♦ Majors Other: Other: Single raise Other: SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing NF Frequently bypass 4+♦ 2NT: Forcing Inv. to 1NT/1♣ 7 to 11 3NT: to 2NT Forcing Inv. 11 to 12 vs Interference: DOPI DEPO Level: ROPI Drury : Reverse 2-Way Fit 3NT: 12+ to 16 LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: Other 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 10+ to 15- HCP x x x x x x x x x x x x x x x x 2♣ Strong Other 6+♣ or 5+♣ 4(+)M2♦ waiting, 2M nat NF A K x T 9 x A K J x A Q J x 2♦ Resp: Neg Waiting 2NT conventional, 3x inv Q x K T x A T 9 A 9 x K J J T Upside-Down: 3 to 11 HCP 6♥ or 6♠ 2M p/c, 2NT R 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 3 to 11 HCP 5+♥, 5(4)+m 2♠ NF, 2NT R, 3♣ p/c 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 3 to 11 HCP 5+♠, 5(4)+m 2NT R, 3♣ p/c, 3♦ = inv ♠ 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 Echorev Weak Jump Shifts: In Comp. Not in Comp. Primary signal to partner's leads Trump Suit Pref. 4th Suit Forcing: 1 Rd. Game Attitude Count Suit preference Foster Echo 1♣ = a) 11-14BAL b) 15+ NAT c) 18+ any SPECIAL CARDING PLEASE ASK Last modified: Feb 26 2021 10:43.