SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 15 to 18 Systems on NAMES David Gold Daniel Korbel Negative thru Conv. GENERAL APPROACH Balancing: 11 to 16 Responsive : thru Maximal 2/1 Jump to 2NT: Minors 2 Lowest Support: Dbl. thru 2M 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: STR WEAK SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ Majors 1NT 2NT 20 to 21 1 level 7 to + HCP (usually) 2♦ 1 major 14+ to 17 3♣ puppet Puppet Stayman often 4 cards very light style 2 Transfer Responses: ♥ H+min to 3♦ 5/5 minors Responses 2♠ S+min Jacoby Texas 5-card Major common 3♥ 31 New Suit: Forcing NFConst NF 3 Dbl: 4M, 5+m PEN 3♠ 13 ♠ --> 3NT Jump Raise: Forcing Inv. Weak Other System on over X, 2C jump cue mixed 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to Gambling no A or K 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 ( TR denies) Conventional NT Openings Jump Shift:Forcing Inv. Weak 2♠ range/C Neg. Double : Redouble implies no fit 2NT D 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. Other XFER/1Mx 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: 2-way SPL (1H-3S or 1S-3N unspec)Single raise Other: SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing Frequently bypass 4+♦ kickback over minors where clear 2NT: Forcing Inv. to 1NT/1♣ 7 to 10 3NT: to 2NT Forcing Inv. 13 to 15 vs Interference: DOPI DEPO Level: ROPI 5-suit Drury : Reverse 2-Way Fit 3NT: 16 to 17 1H-2S 6-10, 6+ spades Other 1m-2H 11-12 BAL LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: 3M weak, 3D mixed, 3C limit 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 X=values, P=dbl neg A K x T 9 x A K J x A Q J x 2♦ Resp: Neg Waiting Kokish with H/C swap Q x K T x A T 9 A 9 x K J J T Upside-Down: to HCP Special 2N ask 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 to HCP Feature 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 to HCP Feature; 4C Preempt RKC 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 SPECIAL CARDING PLEASE ASK 1x-1y-2x-2N is F1 Last modified: Jul 21 2021 13:43