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Convention HELP

Response to 1NT opening

Source

  • Melih Özdil - Melih Özdil

 

 
1NT -             ?

 

                      - 2§                : Stayman

                      - 2¨               : transfer

                      - 2©                : transfer

- 2ª    : transfer to club

                      - 2NT              : transfer to diamond

                      - 3§                : short club (4-4-4-1) or with five diamonds

                      - 3¨               : short diamond (4-4-1-4) or with five clubs

                      - 3©                : short heart and minimum nine cards (5-4) in minors, (3-1-4-5) or (2-1-5-5)

                      - 3ª                : short spade and minimum nine cards (5-4) in minors, (1-3-4-5) or (1-2-5-5)

                      - 4§                : Gerber

                      - 4¨               : Texas with 6+ hearts

                      - 4©                : Texas with 6+ spades

                      - 4ª                : slam forcing with balanced hand; asking lowest four card suit

                      - 4NT              : quantitative

 

Stayman

 

1NT -             2§

 ?

 

- 2¨               : denies four card major

- 2M               : shows four card major

- 2NT              : (4-4) majors, minimum

- 3§                : (4-4) majors, maximum

 

1NT -             2§

2¨   -              ?

 

                      - 2M               : five cards in this major with four cards in other major, invitational

                      - 3M               : four cards in this major with five cards in other major, game-forcing, Smolen

                      - 3§                : (1-4-4-4), (4-1-4-4) or four majors and five clubs, game-forcing

                      - 3¨               : four majors and five diamonds, game-forcing

                      - 4¨               : transfer to heart with four spades and six hearts

                      - 4©                : transfer to spade with four heart and six spades

                                           

1NT -             2§ 

2¨   -             3§ 

 ?

 

- 3¨               : 4+ diamonds, no four clubs

- 3©                : 4+ clubs with good honors in hearts

- 3ª                : 4+ clubs with good honors in spades

- 3NT              : 4+ clubs with good honors in both majors

- 4§                : very good hand with club fit

 

1NT -             2§ 

2¨   -             3¨

 ?

 

- 3©                : shows good honors in hearts

- 3ª                : shows good honors in spades

- 3NT              : shows good stoppers in both majors

- 4m               : very good hand with diamond fit

 

1NT -             2§

2©   -              ?

 

                      - 3§                : (4-1-4-4) or four spades, 5+ clubs and may have singleton heart, game-forcing

                      - 3¨               : four spades and 5+ diamonds and may have singleton heart, game-forcing

                      - 3ª                : singleton spade, (1-4-4-4)

                      - 4§                : singleton club, slam try for heart with five hearts and four spades

                      - 4¨               : singleton diamond, slam try for heart with five hearts and four spades

                      - 2ª                : slam try in heart, any distribution

                        opener must bid 2NT, now 3© slam try with balanced hand; 3§, 3¨ or 3ª shows

                                              five card suit, probably no singleton or only interest in long suit honors.

                                             4© balanced slam invitation and 4NT is RKCB.

 

1NT  -             2§

2©   -             3§

 ?

 

- 3¨               : four diamonds

- 3©                : four clubs

- 3ª                : (3-4-3-3) and maximum hand with good three clubs

- 3NT              : to play 

- 4§                : raise responder’s suit, shows very good hand with good four cards

 

1NT -             2§

2©   -             3¨

 ?

 

- 3©                : four diamonds

- 3ª                : (3-4-3-3) and maximum hand with good three diamonds

- 3NT              : to play 

- 4¨               : raise responder’s suit, shows very good hand with good four cards

 

1NT -             2§

2ª   -              ?

 

                      - 3§                : (1-4-4-4) or four hearts, 5+ clubs and may have singleton spade, game-forcing

                      - 3¨               : four hearts, 5+ diamonds and may have singleton spade, game-forcing

                      - 4§                : singleton club, slam try for spade with 4+ hearts

                      - 4¨               : singleton diamond, slam try for spade with 4+ hearts

                      - 4©                : singleton heart, (4-1-4-4)

                      - 3©                : slam try in spade, any distribution

                        opener must bid 3ª, now 3 NT slam try with balanced hand; 4§, 4¨ or 4© shows

                        five cards suit with support. 4ªalso slam invitation with (5-4-2-2). if responder has

                                             a singleton can shows it later.

 

1NT -             2§

2ª   -             3§

 ?

 

- 3¨               : four diamonds

- 3©                : four clubs

- 3ª                : (4-3-3-3) and maximum hand with good three clubs

- 3NT              : to play 

- 4§                : raise responder’s suit, shows very good hand with good four cards

 

 

 

 

 

1NT  -             2§

2ª   -             3¨  

 ?

 

- 3©                : four diamonds

- 3ª                : (4-3-3-3) and maximum hand with good three diamonds

- 3NT              : to play 

- 4¨               : raise responder’s suit, shows very good hand with good four cards

 

Rules

after majors slam try

- If responder makes slam try with long or short suit, 

  openers 3rd or 4th level bids under 4NT shows good hand; five level bids shows very good

  hand and the number of key cards he has (5CL= 0-3) or returning to trump shows bad hand.

after minors slam try

- If opener rebids at the 3rd level,

  repeating original minor at the 4th level or raising the supported minor to four, is RKCB

 

1NT -             2§

2NT -              ?

 

                      - Pass            : to play

                      - 3¨               : transfer to hearts

                      - 3©                : transfer to spades

                      - 3NT              : to play

                      - 4¨               : transfer to hearts

                      - 4©                : transfer to spades

 

(same after 3§ rebids)

 

 

Transfers

 

1NT -             2¨

 ?

 

- 3©                : shows very good hand

 

1NT -             2ª

 ?

 

- 2NT              : shows bad hand

- 3§                : shows good hand

 

1NT -             2NT

 ?

 

- 3§                : shows bad hand

- 3¨               : shows good hand

 

Rules

- After major transfers, 4NT is slam invitation, 5NT for choice at six level

- After minor transfers, new suit shows shortness in this suit

 

 

 

 

 

Texas

 

1NT -             ?

 

                      - 4¨               : transfer to hearts

                      - 4©                : transfer to spades

 

Rules

- Texas also used after overcall, after 3§ overcall in, after 3¨ and over out

- After Texas, 4NT is RKCB; new suit shows void and ask for key cards

 

After 3m

 

1NT -             3§

 ?

 

- 3¨               : shows good support in diamond no four cards major

- 3M               : shows four cards major

- 3NT              : to play

- 4§                : shows (4-4) majors, now responder’s 4¨ and 4© bids are transfers

- 4¨               : very good diamond fit and maximum hand

 

1NT -             3¨

 ?

 

- 3M               : shows four cards major

- 3NT              : to play

- 4§                : shows (4-4) majors, now responder’s 4¨ and 4© bids are transfers

- 4¨               : very good club fit and maximum hand

 

After 3M

 

1NT -             3ª

  ?

 

- 3NT              : shows good stoppers in spade

- 4m               : shows fit

- 4©                : shows good four cards

 

1NT -             3ª

3NT -              ?

 

                      - 4ª                : shows void and at least (5-5) minors

                      - 4m               : shows short minor and slam try hand

                        Now opener’s first step bid supports five cards minor; second step bid supports

                                             four cards minor, 4NT shows very good stoppers and no support for any minor                                                                                                                                                             

 

(Same after 3© rebids)

 

 

Quantitative

 

1NT -             4NT                16 HCP

 ?

 

- Pass, with minimum

- With maximum; bid five cards suit at six level or bid lowest four cards suit at five level,

  then go step by step to find (4-4) fit, Baron