Saturday, January 28, 2012

1D & Responses without interference

1. Open 1D

1: 10-16, min. 2+ carder Diamond NF. The type of hands you can have only 2 Diamonds are 4423 (10-15 HCP), (42)25 (10-14 HCP),(43)24 and 3325 with last two distributions having 13-15 HCP NV in 1st and 2nd  seat, 10-13 HCP Vul in 1st and 2nd seat. In addition to these, possible hands include 10-15 HCP 3 suiters with at least 3 Diamonds, 4M5+d, 5M6d, minor 2 suiters and balanced 10-13 HCP Vul 1st and 2nd seat. This is a wide variety of possible hands. In general most re-bids by responder are non-forcing, the exception being a reverse by responder; when a new suit is introduced at the 3 level and the convention new minor forcing. Fourth suit forcing is not in use. In 3rd seat can be opened light and can have a maximum of 17 HCP. In 4th seat do not open balanced 10-12 HCP, pass instead and are opened with a range of 12-17 HCP. After a 1st and 2nd seat vulnerable opening opener does not rebid 1NT with 10-11 HCP, but finds a rebid in suit.

1.1.       Responses to 1D without interference

a) Pass : 0-7 HCP not all hands in this point range pass
b) 1/1♠: 4+ card suit 6+ HCP (Less if  doubleton, singleton or void)
               1: Over 1, shows 4+♠ may have a longer minor. Show 4 Spades even if poor if can’t support.
               1NT: This gets a little complicated. After a 1st or 2nd seat Vul opening shows 10-15 HCP where in the 14-15 HCP range will be unbalanced or semi-balanced with 10-13 HCP unbalanced make a suit rebid. This could mean bidding 2♣ on 1444. After a 1st or 2nd seat NV opening shows 13-16 HCP where if in the 10-12 HCP unbalanced make a suit rebid.  After a 3rd or 4th seat opening this shows 12-15 HCP where if 12 HCP then will be unbalanced or semi-balanced. Possible unbalanced/semi-balanced hands are over 1 31(54), 22(54) or 6 card minors over 1♠ 1444, 13(54), 14(53), 22(54), 24(52) or 6 card minors.
                        2: New Minor Forcing to query Strength and major suit holding Vul
                               2: 10-12 HCP and denies 3-card major support, 3rd & 4th seat 12 HCP unbalanced
                               2: over 1shows 10-13 HCP and 3-card Hearts support 
                               2: over 1♠ shows 13 HCP but denies 3 Spades
                               2♠: over 1♠ shows 10-13 HCP and 3-card Spade support and 
                               2♠: over 1shows 13 HCP and denies 3 Hearts
                               2N: shows 14-15 HCP, probably off-shape 
                                              3♣ asks for a major
                        2♣: New Minor Forcing to query Strength and major suit holding in 1st & 2nd NV
                               2: 12-13 HCP and denies 3-card major support
                               2: over 1shows 12-14 HCP and 3-card Hearts support 
                               2: over 1♠ shows 14 HCP but denies 3 Spades
                               2♠: over 1♠ shows 12-14 HCP and 3-card Spade support
                               2♠: over 1shows 14 HCP and denies 3 Hearts
                               2N: shows 15-16 HCP
                                              3♣ asks for a major
                        2♣: New Minor Forcing to query Strength and major suit holding in 3rd & 4th seat
                               2: 12 HCP and denies 3-card major support, unbalanced or semi-balanced
                               2: over 1shows 12-13 HCP and 3-card Hearts support 
                               2: over 1♠ shows 13 HCP but denies 3 Spades
                               2♠: over 1♠ shows 12-13 HCP and 3-card Spade support and 
                               2♠: over 1shows 13 HCP and denies 3 Hearts
                               2N: shows 14-15 HCP, possibly off-shape 
                                               3♣ asks for a major                
 
Note: Over 1-1♠-1NT-2♣ responder is responsible for introducing a 4 card Heart suit. This is forcing at 3 level.
               2♣: 5-6 Clubs (or 4 Clubs with 1444 dist.1st or 2nd NV, either very good Clubs no stoppers for NT or 6 poor Clubs and couldn’t open 2§
               2: 5+ Diamonds 
               Raise 2: over 1, Minimum, 4 card support or 3 card support with ruffing values
                        New Suit: Help Suit Game Try
                        2NT: Invite based on general values, non-forcing
                        3: Invite asking for good trump
               2: over 1♠ unusual 6+ Diamonds 5 Hearts. Play Lebenshol here.
               Raise 2♠: over 1♠, Minimum, 4 card support or 3 card support with ruffing values
                        New Suit: Help Suit Game Try
                        2NT: Invite based on general values, non-forcing
                        3ª: Invite asking for good trump
               2♠: over 1 unusual 6+ Diamonds 5+ Spades. Play Lebenshol here.
               2NT: shows good 6 card Diamond suit 13-14 HCP or after 3rd or 4th seat may also have unbalanced/semi-balanced opening 15-16 HCP
                        3♣: GF New Minor Forcing, looking for 3 card support or 4 cards in other major
               3♣: xy5+5+ both minors
               3: Solid 6-7 card Diamond suit, without stopper in unbid suits. Invitational to 3NT (includes 8+ card suits from a 3rd or 4th seat opening)
               3/3♠: maximum raise
               3/3♠/4♣: splinter in support of Hearts or Spades
               3NT: Solid 8+ Diamond suit(from  a 3rd or 4th seat opening shows a semi-solid suit with 16-17 HCP with stoppers in unbid suits and should not be taken out to a minor)
               4/4♠: maximum with 6+ Diamonds and 4 card major suit support
c) 1NT: 8-10 balanced (may be unbalanced with 5+ card minor), No 4 card Major
               Over a 2/2♠ rebid we play Lebensohl.
d) 2♣: 10+HCP (less with long suit) Forcing up to 2NT
                        2: five card suit (maybe poor 6)
                               Rebid 3♣: Non-forcing
                        2/2♠: 10-13 HCP, NT Probe, Stopper Showing may be a suit
                               Rebid 3♣: Non-forcing
                        2NT: 10-13 HCP, minimum stopper in both major suits
                               Rebid 3♣: Non-forcing
                        raise 3♣: Non-forcing
                        jump to 3: Maximum, Good  suit
                        jump to 3/3♠: Maximum, NT Probe, Good support for ♣
                        jump to 3NT: Max., Stoppers in both majors
                        jump to 4♣: Invitational 5 Clubs
e) 2: 10+, no major, good 5-card  support, one round force
                        2/2♠: stoppers, NT Probe
                        2NT: stoppers in both majors, minimum hand
                        3♣: 10-13 HCP 6 poor Clubs 2 Diamonds. after 3rd seat opening 10-14 HCP, 4th 12-14 
                        3: no stopper in at least one major, Non-forcing
                        3NT: stoppers in both majors, maximum hand
f) 2/2♠/3♣: 16+ Strong suit or 15+ fair suit with good  support
g) 2NT: 16-19 HCP flat, (4333) distribution. With 20+ HCP one makes forcing bids until slam ruled out. Show a 5-card minor suit (with slam interest or 3maybe 5-5 minors choice of games) or a 4-card major else bidding 3NT if reasonable spot with no interest in slam and jumping to 4NT(or a delayed bid) with maximum values. With 16 HCP and 44(32) dist. will likely bid 3. With a 5-card major and thus 6 Diamonds bids 4/4♠ with 13-14 HCP and bids 3/3♠ and continues to 4 level with 10-12 HCP.
h) 3: Pre-emptive, 6 card 
i) 3/3♠/4♣: Splinter, 5+ Diamonds, no major GF (13)14-15 HCP
j) 3NT: (13)14-15 balanced
k) 4: Pre-emptive, 6+ card 
l) 4/4♠: Single-suited 7+ card, lack of controls outside suit
In third and fourth seat jumps show 15-17 HCP(if 17 has 2 4 card majors) not 13-14 and responder can make a bid on 6 HCP. Jumps by responder after a 3rd/4th seat opening are fit showing jumps with 5+ Diamonds and are non-forcing after a 3rd seat opening.

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