SPECIAL DOUBLES NOTRUMP NAMESDoug Andrews & Bob Zeller After : Penalty Direct: 15 to 18 Systems on GENERAL APPROACH Negative thru4H Conv. 2/1 Game forcing except 1D-2C and 3C rebid Responsive: thru4H-2 sui Maximal Balance: 11 to 15 Two Over One: Game Forcing Game Forcing Except When Suit Rebid Support: Dbl thru2S Rdbl Jump to 2NT: Minors 2 Lowest VERY LIGHT: Openings 3rd Hand Overcalls Sandwich NT by Passed Card-showing Min. Offshape T/O Conv. FORCING OPENING: 1♣ 2♣ Natural 2 Bids Other Hand Take out through 4H NOTRUMP OPENING BIDS DEFENSE VS NOTRUMP SIMPLE OVERCALL 1NT 3♣ ->Puppet Stayman 2NT 20 to 21 Strong 1NT Weak 1NT 1-level 7 to 17 HCP (usually) vs: 2♣ 1 suit 1 suit 14+ to 17 3♦ 5-5 min strong Puppet Stayman Often 4 cards Very light style 2♦ Majors Majors to 3♥ frag 1-3-4/5 Transfer Responses: Responses ♥+minor ♥+minor New Suit: Forcing NFConst NF 2♥ 5-Card Major Common 3♠ frag 3-1-4/5 Jacoby Texas 2♠ ♠+minor ♠+minor Jump Raise: Forcing Inv. Weak System On OverDbl &2C 3♠ MSS (GF) Dbl Penalty or str Penalty Cuebid is Limit+, Rosenkr * & ** 2♣ Stayman Puppet Other: one suiter (major) JUMP OVERCALL 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT 12- to 14 Strong Intermediate Weak Forcing Stayman Smolen Gambling & A or K OVER OPP'S T/O DOUBLE 2♥ Transfer to ♠ ( fast denies) Conventional NT Openings New Suit Forcing: 1-level 2-level 2♠ Tr to Clubs Sup 3le 4D asks shortness OPENING PREEMPTS Redouble implies no fit 2NT->Tr to D or mm Sup acpt bid minor Sound Light Very Light 2NT Over Limit + Limit Weak 3/4-bids Majors MAJOR OPENING MINOR OPENING Conv./Resp.Vul or Minors Expected Min. Length 4 5 Expected Min. Length 4 3 NF 0-2 Conv. Weak jump raise DIRECT CUEBID Other: 1st/2nd 1♣ Over: Minor Major VS OPENING DOUBLE IS 3rd/4th 1♦ Natural Takeout thru4H Penalty RESPONSES RESPONSES Strong T/O Conv. Takeout: Double Raise: Force Inv. Weak Double Raise: Force Inv. Weak Michaels Lebensohl 2NT Response After Overcall: Force Inv. Weak After Overcall: Force Inv. Weak Natural if 2 suits have been bid Other: 2NT Overcall = 15+-19 HCP Conv. Raise: 2NT 3NT Splinter Forcing Raise: J/S in other minor SLAM CONVENTIONS Gerber 4NT: Blackwood RKC 1430 Other: Jacoby 2NT Single raise Other: GF Gerber over NT, Minorwood only , Specific Kings, For Queen ask, 1NT: Forcing Semi-forcing Frequently bypass 4+♦ return to suit denies Q 2NT: Forcing Inv. to 1NT/1♣:7 to10 vs. Interference: DOPI DEPO Level:5 ROPI 3NT:13 to15 2NT: Forcing Inv. 11 to12 Drury : 2-Way Fit 3NT:13 to15 LEADS (click card led, if not in bold) DEFENSIVE CARDING versus Suits versus Notrump vs Suits vs NT Other: HSGT Tr over dbl constr. Other: 2/3 of other minor is limit x x x x x x x x x x x x Standard: DESCRIBE RESPONSES/REBIDS x x x x x x x x x x x x x x x x Except 2♣22 to HCP Or 9+ tricks, 2H is no A,K 2NT is H with 2 of 3 t A K x 10 9 x A K J x A Q J x Strong Other Rev Kok relay shows 22-24 2C-2D-2NT=25-27 K Q x K J 10 x A J 10 9 A 10 9 8 Upside-Down Count 2♦ Response: Neg Waiting Denies good suit Q J x K 10 9 x K Q J x K Q 10 9 Upside-Down Attitude 5 to 11 HCP Normally good 6-card suit RONF; 2NT is Ogust J 10 x Q 10 9 x Q J 10 x Q 10 9 8 2♦ FIRST DISCARD Natural: Weak Intermediate Strong Conv 2NT Force New Suit NF K Q 10 9 J 10 9 x 10 9 8 x Lavinthal 2♥5 to 11 HCP Normally good 6-card suit RONF; 2NT is Ogust Length Leads: Odd/Even Natural: Weak Intermediate Strong Conv 2NT Force New Suit NF 4th Best vs Suits vs NT Rev Smith 5 to 11 HCP Normally good 6-card suit RONF; 2NT is Ogusy 3rd/5th Best vs Suits vs NT OTHER CARDING 2♠ A count or unblk, Attitude vs NT Smith Echo Natural: Weak Intermediate Strong Conv 2NT Force New Suit NF Primary to partner's leads Trump Suit Pref. OTHER CONV CALLS: 2-Way NMF Attitude Count Suit Preference Foster Echo Weak jump shifts: In Comp. Not In Comp. over minors 4th Suit Forcing: 1 Round To Game SPECIAL CARDING PLEASE ASK Vs. Unusual, 3C is H, 3D is S, Ingberman, CBS, Wolff, Lightner db Dbl of 1NT-3NT asks Spade, Suction, Def. Software by Bridge Base Online, LLC. - www.bridgebase.com