SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 15 to 18 Systems on NAMES Bruce Ferguson and Daniel Korbel Negative thru Conv. Meckwell if doubled GENERAL APPROACH Balancing: 11 to 16 Responsive : thru Maximal 2/1 Jump to 2NT: Minors 2 Lowest Support: Dbl. thru 3x 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 Wk SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ C+M Majors 1NT 2NT 19+ to 21 1 level 7 to + HCP (usually) 2♦ D+M 14+ to 17 3♣ Puppet Puppet Stayman often 4 cards very light style 2 Transfer Responses: ♥ H to 3♦ 5 5 minors Responses 2♠ S Jacoby Texas 5-card Major common 3♥ 31 New Suit: Forcing NFConst NF 3 Dbl: 1m or MM Pen 3♠ 13 ♠ --> 3n , om, 4n s Jump Raise: Forcing Inv. Weak Other System on over X 2C Jump Q mixed 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to ACOL (9 tricks any suit) 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♠ Clubs Neg. Double : Redouble implies no fit 2NT Diamonds Other: Baze (4c rkc) 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. Poorman's BW 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: Single raise Other: SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing Frequently bypass 4+♦ 2NT: Forcing Inv. to 1NT/1♣ U to 10 3014 excl 3NT: 13 to 15 2NT Forcing Inv. 13 to 15 vs Interference: DOPI DEPO Level: ROPI P 1/4 D 0/3 Drury : Reverse 2-Way Fit 3NT: 16 to 17 Other 1m 2h 11-12 bal LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: J/S inv 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 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: to HCP Feature, 2N/2M=2 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 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 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 3c to play 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 Attitude Count Suit preference Foster Echo 1M-(any)-2N is limit+ M in comp SPECIAL CARDING PLEASE ASK Last modified: Mar 10 2021 23:20.