SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 15 to 18 Systems on NAMES J DAVID ADLER 4449592 Negative thru 4♥ Conv. GENERAL APPROACH Balancing: 10 to 15 Responsive : thru 4♥ Maximal 2 over 1 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: Strong Weak SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ ♣+major ♥ + ♠ 1NT 2NT 20 to 21 1 level 7 to 16 HCP (usually) 2♦ ♦+major ♦ 14+ to 17 3♣ Puppet Puppet Stayman often 4 cards very light style 2 ♥ Transfer Responses: ♥ natural to 3♦ GF 5/5 MINORS Responses 2♠ natural ♠ Jacoby Texas 5-card Major common 3♥ INV 5/5 MAJORS New Suit: Forcing NFConst NF 3 Dbl: ssm or ♥ + ♠ points 3♠ GF 5/5 MAJORS ♠ MSS Jump Raise: Forcing Inv. Weak OtherMeckwell Landy System on over X, 2C jump cue=mixed raise 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to gambling SEATS 1+2 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 denies) Conventional NT Openings Jump Shift:Forcing Inv. Weak 2♠ transfer to ♣ Neg. Double : Redouble implies no fit 2NT transfer to ♦ 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. VUL NONVUL 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 Other: Other: Jacoby Single raise Other: SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing Frequently bypass 4+♦ Specific Kings 2NT: Forcing Inv. to 1NT/1♣ 6 to 10 3NT: to 2NT Forcing Inv. 11 to 12 vs Interference: DOPI DEPO Level: ROPI 5 of trump suit+ Drury : Reverse 2-Way Fit 3NT: 13 to 15 MODIFIED BERGEN, 3M=mixed raise Other inverted minors all seats. off in competition LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: 3C=3 cards invite+, 3d=4cards invite 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 strong, ART A K x T 9 x A K J x A Q J x 2♦ Resp: Neg Waiting double negative Q x K T x A T 9 A 9 x K J J T Upside-Down: 6 to 11 HCP Feature 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 6 to 11 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 6 to 11 HCP Feature 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 SUIT PREF Attitude vs NT OTHER CARDING OTHER CONV. CALLS: New Minor Forcing: 2-Way NMF CODED 10,9 JOURNALIST LEADS Smith Echo Weak Jump Shifts: In Comp. Not in Comp. Primary signal to partner's leads Trump Suit Pref. 4th Suit Forcing: 1 Rd. Game Unusual vs Unusual Attitude Count Suit preference Foster Echo 2NT = SPIRAL/3,3,4,4/min,min,max,max SPECIAL CARDING PLEASE ASK Last modified: Jul 26 2020 08:52.