Saturday, October 12, 2013

Basic Lebensohl after 1N opening


After 1N-X you ignore double and play systems on. Can give special meaning for pass and redouble.

After 1N-2♣ you double for Stayman and otherwise ignore bid and play systems on.

After 1N-2♦

-double Penalty opener must pass and cooperate in penalizing if they run

-2♥ sign-off but opener can still "super accept" as if a transfer or compete with good trump

-2♠ sign-off same as over 2♥

-2N puppet, opener must bid 3♣ no matter what they have

      -3♣ forced

             -pass to sign-off in Clubs

             -3♦ Stayman with a ♦ stopper, (cue-bids are Stayman, going slow by bidding 2N means you have a stopper

             -3♥ natural INV

             -3♠ natural INV

            -3N to play with a ♦ stopper (went slow with 2N so have a stopper)

-3♣ natural forcing

-3♦ Stayman without a stopper

-3♥ natural forcing

-3♠ natural forcing

-3N game values but lack ♦ stopper (went fast no 2N) if opener has no ♦ stopper you scramble, may end up in 4♣ or 4-3 major fit

 

works basically the same over 2♥/2♠

 

After 1N-2♥

-double Penalty opener must pass and cooperate in penalizing if they run

-2♠ sign-off , opener may "super-accept"  or compete

-2N puppet, opener must bid 3♣ no matter what they have

      -3♣ forced

             -pass to sign-off in Clubs

             -3♦ sign-off

             -3♥ Stayman with a ♥ stopper, (cue-bids are Stayman, going slow by bidding 2N means you have a stopper

             -3♠ natural INV

            -3N to play with a ♥ stopper (went slow with 2N so have a stopper)

-3♣ natural forcing

-3♦ natural forcing

-3♥ Stayman without a stopper

-3♠ natural forcing

-3N game values but lack ♥ stopper (went fast no 2N) if opener has no ♥ stopper you scramble, may end up in 4♣/4♦ or 4-3 spade fit

 

After 1N-2♠

-double Penalty opener must pass and cooperate in penalizing if they run

-2N puppet, opener must bid 3♣ no matter what they have

      -3♣ forced

             -pass to sign-off in Clubs

             -3♦ sign-off

             -3♥ sign-off

             -3♠ Stayman with a ♠ stopper, (cue-bids are Stayman, going slow by bidding 2N means you have a stopper

            -3N to play with a ♠ stopper (went slow with 2N so have a stopper)

-3♣ natural forcing

-3♦ natural forcing

-3♥ natural forcing

-3♠ Stayman without a stopper

-3N game values but lack ♠ stopper (went fast no 2N) if opener has no ♠ stopper you scramble, may end up in 4♣/4♦ or 4/3 heart fit

Friday, August 9, 2013

2/1 method in response to Aug ACBL Bulletin


There was an article in August 2014 ACBL Bulletin on fixing 2/1. It gave a patchwork of suggestions with the reader left to pick and choose, this article is my choices and some additions for 2/1 in 1st and 2nd seat only. The methods are slightly different for 1♥ so will show responses to 1♥ first. I haven’t given continuations in most cases but it’s not hard to come up with continuations.

 

1♥ Responses:

1♠ -      4+♠ 5+ hcp F1

1N -     5-12 hcp F1 may contain upto JT9 ♥ support

Will take a false preference with 2♥ and 3 of minor and live with occasionally ending up in poor fit.

2♣/2♦   4+m 13+ pts GF Also, may include solid or semi-solid 7+ card suit which has tricks but not 13 hcp.

2♥        (5)6-10 pts 3+ card support if 5-7 pts, 3 card support with 8-10 pts NF

2♠ -      4+♥ 8-10 pts constructive  raise (Bergen) or your normal 3N bid which for me is 33(43) 15-17 hcp with at least a partial stopper in unbid suits. If opener signoffs responder can bid 3N with the 15-17 hcp hand.

2N -     Qxx or 4+ card support or better (10)11-12 pts INV or 4+ card support 12+ pts GF

3♣ -     6+♣ 10-12 hcp INV has 0-2 cards in opener’s major

3♦ -      6+♦ 10-12 hcp INV has 0-2 cards in opener’s major

3♥ -      preemptive raise, 4+ card support NF

3♠ -      4+♥ 0-1♣ 13+ pts transfer splinter GF

3N -     4+♥ 0-1♦ 13+ pts transfer splinter GF

4♣ -     4+M 0-1♠ 13+ pts transfer splinter GF

Using transfer splinters means there is always a bid available as a slam try below game.

4♦ (over 1♥) -  Swiss Raise, 4♥ balanced (but not 3-4-3-3)13-15 hcp and 3 keycards GF

This an extra bid that compensates for loss of 3N. Another possible use could be a preemptive raise with some defense. Other uses are possible.

4♥ -      usually a preemptive raise, but may be bid to make with no slam aspirations

 

1♠ Responses:

1N -     5-12 hcp F1 may contain upto JT9 ♠ support

2♣/2♦ -            4+m 13+ pts GF

2♥ - 5+♥ 10+ pts GF except for 1♠-2♥-2♠-3♥ which shows only 10-12 pts 6+♥;  2N rebid by responder may be artificial with 6+♥ GF.

2♠ -      (5)6-10 pts 3+ card support if 5-7 pts, 3 card support with 8-10 pts NF

2N -     Qxx or 4+ card support or better (10)11-12 pts INV or 4+ card support 12+ pts GF

3♣ -     6+♣ 10-12 hcp INV has 0-2 cards in opener’s major

3♦ -      6+♦ 10-12 hcp INV has 0-2 cards in opener’s major

3♥ -      4+♠ 8-10 pts constructive raise (Bergen) or 33(43) 15-17 hcp with at least a partial stopper in unbid suits F1

3♠ -      preemptive raise, 4+ card support NF

3N -     4+♠ 0-1♣ 13+ pts transfer splinter GF

4♣ -     4+♠ 0-1♦ 13+ pts transfer splinter GF

4♦ -      4+♠ 0-1♥ 13+ pts transfer splinter GF

4♥ -      7+♥ pre-emptive denies ♠ support
 
4♠  -      usually a preemptive raise, but may be bid to make with no slam aspirations


1♦ Responses:

2♣ -      4+♣ 13+ pts GF

2♦ -       4+♦ 10+ pts F1

3♣ -      6+♣ 10-12 pts INV

3♦ -       preemptive

Other responses unchanged

 

Wednesday, June 26, 2013

Defense to Opponents Weak 2 Opening



After takeout double in direct or balance, play transfer Lebensohl. A takeout double can be made without support for the lowest unbid suit (♣ except for rare weak 2♣ then ♦), will in this case have a 2-suiter. If responder shows the lowest unbid suit, the doubler bidding the next lowest unbid suit shows a 2-suiter, they are not showing a strong hand. To show a strong hand doubler cuebids, jumps in lowest unbid suit or bids highest unbid suit.
 


A non-jump suit overcall has decent values and suit, do not act with a hand that would normally be a 2 or 3-level preempt over a preempt.

After 2N overcall 16-19 hcp, all 3-level suit bids are transfers, with a transfer to opener’s suit being Stayman and 3♠ being a transfer to ♣ (or to over a rare weak 2♣ with 3♣ being Stayman). Stayman may also have a forcing hand with 2 minors, with your second bid you cue-bid again. 4♣ is Gerber, 4♦/4♥ are Texas transfers, with a Texas transfer to opener’s suit being minor suit Stayman without slam interest.

A direct cuebid is a Western cuebid, asking partner to bid 3NT with a sure stopper in their suit, usually has hand with 7 plus running tricks.

A jump to 3 of a suit is natural and forcing.

3N is to play.

A jump to 4♣/4♦ is leaping Michaels showing a strong 2-suiter.
                                    4♣                       4♦
2♣                              ♥ & ♠                ♦ & ♥/♠
2♦                             ♣ & ♥/♠               ♥ & ♠
2♥                              ♣ & ♠                 ♦ & ♠
2♠                              ♣ & ♥                 ♦ & ♥

Monday, January 7, 2013

Defense to Strong 1C Openings



vs. Artificial Forcing 1♣ Modified DONT
Over a strong 1♣, overcalling does not promise hcp only distribution. (pass with 16+ balanced)
The idea is to overcall with good distribution 1N or higher to use up bidding space. Assumption it is hard to penalize a 1 or 2-level bid accurately as no investigation of fit will be possible. Have modified DONT to show hands with longer or equal majors with1♥/1♠ so 2♣/2♦ show at least a 5 card suit. The only hand lost by this modification is hands with 5+♦ and 4♣. This hand could overcall 1♦ if you want a ♦ lead or 1N with 6♦.
Double = ♥ & ♠ 5-4 needs 5-4 as double does not use up any bidding space (doesn’t show or deny length in either minor)
            1♦ = asks for longer major
1♦ = natural 5+ card suit. Should offer good lead or be a good hand that wants to compete as actually gives more bidding space to opponents


1♥/1♠ = 5+ card suit and 4+ card minor, 6♠4♥ or rare 7-5, NT bids by resp. ask for 2nd suit
1N = 1 suiter 6+ cards, though usually 6
2♣ = 5+♣ and higher suit
2♦ = 5+♦ and major
2♥ = ♥ & ♠ 5-5 or better
2♠ = 6+♠ good hand, usually 12-16 hcp but there is no upper limit
2N = ♣ & ♦ 5-5 or better

Higher bids pre-emptive

Special distribution:
6♠4♥ bid 1♠, but with poor ♠ double or poor ♥ bid 1N
4♠6♥ double, but with poor ♠ bid 1N
6-5/6-6 in majors treat as 5-5
7-5 in majors bid 1M (longer suit) and reverse or jump shift with adequate values
hands with 6 card minor and poor 4 card side suit may be treated as 1-suiter with 1N
4333, 4432, 5332 hands are normally passed due to their balanced nature
4441 hands are passed as is difficult to find fit
With 5422 hands pass unless your values are concentrated in your long suits, due to balanced nature of hand