SPECIAL DOUBLES NOTRUMP OVERCALLS After Overcall: Penalty Direct: 16 to 18 Systems on NAMES Aled Iaboni & Ethan Macaulay Negative thru 3♠ Conv. GENERAL APPROACH Balancing: 11 to 15 Responsive : thru 3♠ Maximal PRECISON 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: Str NT Weak NT SIMPLE OVERCALL NOTRUMP OPENING BIDS 2♣ 5/4+ Majors NAT 12+ HCP 1NT 2NT 5 to 11 1 level 7 to 16 HCP (usually) 2♦ Long Major NAT 12+ HCP 10 to 12 (NV) 3♣ 5+ ♣ GF+ Puppet Stayman often 4 cards very light style 2♥ ♥ + Minor NAT 12+ HCP Transfer Responses: 14 to 16 (V) 3♦ 5+ ♦ GF+ Responses 2♠ ♠ + Minor NAT 12+ HCP Jacoby Texas 5-card Major common 3♥ 5+ ♥ GF+ New Suit: Forcing NFConst NF 3 Dbl: Long Minor PENALTY 3♠ 5+ ♠ GF+ ♠ Jump Raise: Forcing Inv. Weak Other System on over 2C 2♣ Stayman Puppet 2♦ Transfer to ♥ 4♦, 4♥ Transfer 3NT to 3NT = GAMBLING 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 5 card suits are possible Jump Shift:Forcing Inv. Weak 2♠ Trans to ♣ Neg. Double : 2NT opening = 5/4+ Redouble implies no fit 2NT Trans to ♦ Other: minors, WEAK 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. Ogust 2NT Other Jordan 2NT 1st/2nd 10 - 15 HCP 1♣ 3rd/4th 10 - 15 HCP 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: 2NT=11+ hcp, 4+ trump, inv+ Single raise Other: INV+, 4+ ♦ SLAM CONVENTIONS Gerber : 4NT: Blackwood RKC 1430 1NT: Forcing Semi-forcing Frequently bypass 4+♦ Exclusion keycard blackwood, Non-serious 3NT 2NT: Forcing Inv. 11+ to 1NT/1♣ to 3NT: 12 to 15 2NT Forcing Inv. to vs Interference: DOPI DEPO Level: ROPI 5 Drury : Reverse 2-Way Fit 3NT: 12 to 15 Reverse Drury Other 2NT/1♦ = GF+, Balanced LEADS (circle card led, if not in bold) DEFENSIVE CARDING Other: Jump shift = Fit Bid, 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 10 to 15 HCP x x x x x x x x x x x x x x x x 2♣ Strong Other 6+ ♣ 2N = either constructive ♣ A K x T 9 x A K J x A Q J x 2♦ Resp: Neg Waiting INV+, asks 4cM raise or GF+ with clubs Q x K T x A T 9 A 9 x K J J T Upside-Down: 11 to 15 HCP 3-suited, short ♦ 2N = shape, str inquiry 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 5 to 12 HCP 2N = Ogust 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 5 to 12 HCP 2N = Ogust 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 Rusinow Leads 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 Transfers after 1♦ (X) or after 1M (X) SPECIAL CARDING PLEASE ASK 2N in Competition = Lebensohl NAMYATS Last modified: Aug 18 2018 12:47.