Sunday, September 30, 2012

Modified Rubensohl - Transfer Lebensohl update July 4, 3013


Rubensohl – Transfer Lebensohl

Rubensohl can be used after:

·         a 1N opening and an overcall, 

·         a 1N overcall and further interference.


Rubensohl is not used after a reverse, opponents open a weak 2 and our side doubles

·         opponents open 1 of a suit and suit is raised with one person from our side doubling 1 or 2 of suit or both.
 

The text uses overcalls of 1N opening as examples and we try to mention differences in methods for other situations.

2N forces NT bidder to bid 3♣ to play or another natural bid by responder is natural often with a stopper

A “transfer” to opponent’s suit is Stayman with a stopper, opener bidding opp suit indicates lack of unbid 4-card major and a minimum. The exception is over 2♦ where the transfer to opp suit 3♣ is INV to 3N with 6+♣ and 3♦ is a transfer to ♥.

Otherwise:

3♣ is a transfer to ♦ INV, GF or even a slam try

3♦ is a transfer to ♥ INV, GF or even a slam try

3♥ is a transfer to ♠ INV, GF or even a slam try

3♠ is Minor Suit Stayman (except over 2♦ where it is a transfer to ♣)

Over 2♦, 2N followed by 3♦ is Stayman with a stopper.

Over 2♥/2♠ followed by a cuebid is a transfer to ♣, possibly to play in 3N

Negative doubles are used not for penalty doubles, but used as Stayman without a stopper. Negative doubled used to better compete for partials. This means responder may have to pass some hands and opener should balance aggressively as he would after a suit opening. If using 10-12 1N penalty doubles are used.

1N-(2♦)
            Dble - negative double at least one 4-card major (if 10-12 1N then PEN)
            2♥/2♠ - TP
            2N - puppet to 3♣
                        Pass - TP in ♣
                        3♦ - Stayman with ♦ stopper
(Over a Wk 2 or 1 suit X, may not have a stopper with both majors.
Also does not promise a stopper 1N was 10-12 hcp)
                        3♥ - ♥ INV with ♦ stopper
                        3♠ - ♠ INV with ♦ stopper
                        3N - TP with ♦ stopper
3♣ - 6+♣ INV to 3N
3♦ - transfer to ♥, GF or INV without ♦ stopper
3♥ - transfer to ♠, GF or INV without ♦ stopper
3♠ - transfer to ♣, GF
3N - TP without ♦ stopper
4♣ - Gerber
4♦ - Texas transfer to ♥
4♥ - Texas transfer to ♠

1N-(2)
            Dble - negative double 4♠ (if 10-12 1N then PEN)
            2♠ - TP
            2N - puppet to 3♣
                        Pass - TP in ♣
                        3♦ - TP in ♦
                        3♥ - transfer to ♣        
3♠ - ♠ INV with ♥ stopper
                        3N - TP with ♥ stopper
            3♣ - transfer to ♦, GF or INV
3♦ - Stayman with ♥ stopper (if 10-12 1N then doesn’t promise a stopper)
3♥ - transfer to ♠, GF or INV without ♥ stopper
3♠ - Minor Suit Stayman
3N - TP without ♥ stopper
4♣ - Gerber
4♦ - no meaning
4♥ - Texas transfer to ♠

1N-(2♠)
            Dble - negative double 4♥ (if 10-12 1N then PEN)
            2N - puppet to 3♣
                        Pass – TP in ♣
                        3♦ - TP in ♦
                        3♥ - TP in ♥
            3♠ - transfer to ♣
                        3N – TP with ♠ stopper
            3♣ - transfer to ♦, GF or INV
3♦ - transfer to ♥, GF or INV
3♥ - Stayman with ♠ stopper (if 10-12 1N then doesn’t promise a stopper)
3♠ - Minor Suit Stayman
3N - TP without ♥ stopper
4♣ - Gerber
4♦- Texas transfer to ♥

Examples
 
1N-(2♦)-4♥(♠ trf)-(P)
4♠ - (P) – P (6+♠ no slam ambitions)
 
1N-(2♦)-3♥(♠ trf)-(P)
3ª- (P) – 4♣/4♦ (slam try)/4© choice of games

1N-(2♦)-4♥(♠ trf)-P
4♠ - (P) -4N (1430) if you just want to 1430 use Texas

1N-(2♦)-3♥(♠ trf)-(P)
3♠- (P)-  3N (GF 5♠ and ♦ stopper)

1N-(2♦)-3♥(♠ trf)-P
3♠-P- 4N (INV to 6N with 5♠ if you wanted to 1430 retransfer with 4♥ first)


1N-(2♦)-4♦(♥ trf)-P
4♥ - (P) – P (6+♠ no slam ambitions)

1N-(2♦)-3♦(♥ trf)-P
3N- (P) – 4♥ (mild slam try, as would have used Texas with no slam ambitions, 4♣ would be more ambitious)

 1N-(2♦)-3♦(♥ trf)-(P)
3©(min or max with 2♥ and no or poor ♦ stopper)

1N-(2♦)-4♦(♥ trf)-P
4♥ - (P) - 4N (4♠ if using Kickback  - 1430) if you just want to 1430 use Texas

1N-(2♦)-3♦(♥ trf)-P
3♥ - (P) - 3N (GF 5♥ and ♦ stopper)

 1N-(2♦)-3♦(♥ trf)-(P)
3♥-(P)- 4N (INV to 6N with 5♥ if you wanted to 1430 retransfer with 4♦ first)

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