1NT OPENING

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→ 3M=strong 2 suits→ 3NT= to play→ 4♣=clubs+OM→ 4♦=diamonds+OM1M-P-3♣ (9-11hcp. 4c) → Dbl= asks for lead club→ 3M= take out→ 3NT= to play→ 4♣=clubs+OM→ 4♦=diamonds+OMDEFENCE TO 2NT: the minors3. Dbl=15-16+hcp4. 3♣=strong one suited major→3♦: asks which5. 3♦=the majors6. 3♥/♠=one suited7. 4♣=singleton in ♣, with 5-5 in majors8. 4♦=singleton in ♦, with 5-5 in majorsonly in first zone:1m-1Μ2M-2NT=FORCING→3m/3Om=short→3M=15-17 (in 1 st zone)After reverse the 4 th suit is the weakest responseDEFENCE TO 3m opening bid1. 4m=both majors2. 4om=GF with unspecified one-suiter3. 4M=that major suit and the om2NT after WEAK TWO in MAJOR1. 3♣=trf for diamonds2. 3♠=trf for clubs
3. 3 in the majors=stayman or trf1M-1NT-2NT=GF, artificial1♥ - 1♠2NT → 3♣= natural, 5c+→ 3♦= natural, 5c+→ 3♥= 3-card support, limit→ 3♠= 2♥, tending to suggest 3-2-4-4→ 3NT= 5-5 in the minors1♠ - 1NT2NT → 3♣= unknown 5+ card minor→ 3♦= 4 card heart suit (♥)→ 3♥= 5 card +→ 3♠= 2♠, tending to suggest 2-3-4-4→ 3NT= 5-5 in the minors[ETM Transfer to Double at High Levels]When the bidding is above 3NT, in a competitive auction, and we are in agame force (or the partnership has agreed that the bidding sequenceshows we have the clear balance of power), then the following biddingapproach is used over the last bid by the opponents:- Pass is a transfer to double, and asks partner to double unless has a handthat needs to bid again. If the hand that made the pass (as a transfer todouble) next bids it is inviting to slam (or if a limited hand showing amaximum in case partner is interested in slam).- Double shows a preference to bid, but offers partner the chance to passif that’s right.- Direct bids are competitive only, and are not slam invites.Examples:1♥=2♠=3♠=4♠—Pass: Please double partner.1♥=3♠=4♥=4♠—Pass: Pass is non-forcing, since 4♥ did not establishforcing passes.1♥=2♠=3♠=4♠—Double: I have a preference to bid, but perhaps youwant to pass this.[1NT Forcing Competitive]
Page 1 and 2: 1NT OPENING2♣ = Stayman. Promises
Page 3 and 4: 3♣/♦ = GF natural3♥/♠ = 6
Page 5 and 6: 2♥ OPENING2♥→2♠=to invitati
Page 7 and 8: 2♦-2NT-3♦-3♥→3♠=singleton
Page 9 and 10: f. With 8-12 hcp we bid pass and we
Page 11 and 12: agreed trump suit on the 5 level, a
Page 13 and 14: o Cue-bidding is done up the line.
Page 15: 1♥-1NT2♣-2♦:LANDY2♥ = 12-14
Page 19: When opposite b), partner will usua

1NT OPENING

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