Saturday, January 28, 2012

1NT Opening without interference


1. Open 1N


1N 14-16 HCP in 1st and 2nd seat Vul, 10-12 HCP  in 1st and 2nd seat NV and 15-17 HCP in 3rd and 4th seat. Opening 1N generally denies 5M, 6m or 5m422. 1N denies having 2 good 4 card majors (Qxxx or better) except for 10-12 HCP range. In 3rd and 4th seat more leeway and may open 5m422 or 6m322 hands 1N. Have checked often open 5 card majors on convention card. The handy table below gives the HCP range of invites and required to bid game over 1N. INV without a 4-card major are done via Stayman.

 

HCP Range
Invite On
Bid Game ON
10-12
13-14
15
14-16
9-10
11
15-17
8-9
10

 

1.1.       Responses to 14+ 1N without interference


Responder may transfer to a 5+ card major. Responder may transfer to ♣ with Wk/INV/GF. May transfer to  with Wk/INV. May INV with 3. 3/3♠ are (54) in minors and a splinter. Texas Transfers are used. Garbage Stayman is not used so opener may cooperate in penalizing interference over 2♣. Slam-going hands with 4-card or sometimes 5-card minors are started off with Stayman then jumps to 4m. While Stayman does not promise a 4-card major, we do not strain to find ♠ when opener has shown  as opener denies 2 good 4-card majors when they open 1N.

2♣:       non-forcing Stayman

            includes balanced INV hands without 4M and slam hands, otherwise will have 4M.

2:        no 4-card major

2/2ª   5-cards and INV (tending to be hands not liking NT else they would transfer and bid 2N and does not guarantee 4 cards in other major)

2N        INV responder does not promise a 4-card major

3♣/3    5+ card suit GF. Responder will generally have a 4-card major.

3/3♠    5+ cards in OM 4 cards in bid major, Smolen, GF

3N        to play, responder does not promise a 4-card major

4♣/4    ST with 4 or 5-card minor or 6-card minor with 4-card major

(4♣ bid may also have 4)

                        4/4♠    to play

                        4N        Quantitative INV to 6N

            2:       4-card , may have poor 4♠

                        2♠         5♠ and INV (doesn’t want to play in NT)

                        2N        INV responder does not promise 4♠ and opener can’t have 4♠

(over 1♣-1-1N: 3♣=max. 4♠;3♠ = min. 4♠,3N = max. no 4♠)

                        3♣        artificial GF puppet to 3 (opener must bid 3)

                                    3        artificial 4♠ and 5+♣ GF

                                    3♠         4♠ GF may be slam try

                                    3N        artificial slam try in , may be prelude to Kickback

            4♣/4    ST with 4-5 card minor or 6-card minor with 4-card major

                        (4♣ bid may also have 4)

3         5+ 4♠ GF

3        4+ INV

3♠/4♣/4           4+ 0-1♠/♣/ splinter

3N        to play with 4♠

4        to play

4♠         Exclusion Keycard 30/14 for with ♠ void

                        4N        Quantitative INV to 6N

            2♠:        4-card ♠, denies 4 good

                        2N        INV responder does not promise 4

                        3♣        artificial GF puppet to 3♦ (opener must bid 3♦)

                                    3        artificial 4 and 5+♣ GF

                                    3♠         4+♠ slam try, may be prelude to Kickback         

            4♣/4    ST with 4-5-card minor or 6-card minor with 4-card major

                        (4♣ bid may also have 4)

3         5+ 4 GF

3        5♥ INV (doesn’t want to play in NT)

3♠         4+♠ INV

3N        to play with 4

4♣/4/4           4+♠ 0-1 ♣/♦/ splinter

4♠         to play

                        4N        Quantitative INV to 6N

2/2:   Transfer to hearts/spades.

            2-2-2♠           GF 5-5+ in majors. 2N=2-2-(54), 3♣ =good , 3♦=good ♠, 3N=3-3 /♠

            2-2♠-3           INV 5-5+ in majors        

            2-2-3♣           artificial GF, 5+(ST) or 4+♣. 3 response=♣; 3OM=good OM, 3N=2M

            2-2♠-3♣           artificial GF, 5+♠(ST) or 4+♣. 3 response=♣; 3OM=good OM, 3N=2M

            2-2-3♠           artificial, 0-1 ♠ 6+ self-splinter

            2-2-4♣/4      artificial, 0-1 ♣/ 6+ self-splinter

            2-2♠-4♣/4      artificial, 0-1 ♣/ 6+♠ self-splinter

            2-2♠-4           artificial, 0-1 6+♠ self-splinter

2♠:        Transfer to ♣. Hand which would accept INV bids 2N. With GF bids doubleton or

            shortness. For slam try bids shortness or cuebids.

2N:       5-5+ Minors Weak/GF. Opener gives preference, responder bids short major with GF.

3♣:       Transfer to , Weak or GF. With GF bids doubleton, shortness or 3N for ♣.

For slam try bids shortness or cuebids.

3:        6-card INV to 3N

3/3♠:   singleton, 3 of /OM and 5-4 in minors, GF

            3♠ (over 3 only)           suggestion to play in 4-3 fit

            3N        singleton well stopped

            4♣        3-3 in minors or ♣ preference. 4 now 5 not Kickback.

            4         preference

            4 (over 3♠ only)           suggestion to play in 4-3 fit

            4 of singleton    2-2-4-5 or 2-2-5-4

            4N        4-4 in minors

4♣:       Gerber

4/4:   Texas transfer to /♠

4♠:        To play. Wants to play from responder’s side.

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