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)
3ยช- (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)

Saturday, July 28, 2012

My stab at a Polish club style system

While not ready for publication I have a rough outline for a forcing club stem similar to Polish club.  I also incorporated a lot of material from "unassuming club".
My goal was to have 1D promise 4+D and 2C not to have a 4-card major. 
To accomplish this I have used a weak 12-14 NT.

For 1C opening the following hands are included:
4-4-1-4 11-18 hcp and 4-4-0-5 hands 11+ hcp
4M and 5+C 11+ hcp
6+C  no 4M 16+ hcp
15-20 or 23+ hcp balanced 5M, 6m or 5m(422) permitted
any 19+ hcp hand unbalanced but not 19+ hcp (4441)
"Acol 2" in majors (2 suiter possible)

1D 11-18 unbalanced except for 5422/6322/7222 with 4+D, possibly having longer C.

Over 1M 11-18 hcp play 2/1 game force with a semi-forcing NT and Gazzilla. May include a longer minor 

2C is 6+C 11-15 hcp no 4-card major.

2D is 19+ hcp (4441) midchart add multi weak 2 plus strong (4441)

2H/2S=weak , for midchart 5 carder + 5 card minor

2N 21-22 balanced 5M, 6m or 5m(422) permitted

Tuesday, June 5, 2012

Using Regular Stayman as Puppet Stayman

Using puppet Stayman as 3C or as in my option 2NT takes up a useful bid. Suppose you could use regular Stayman to enquire about a 5-card major, then you could use 2NT or 3C with a normal meaning.


First the simple case of a 2NT raise before considering Stayman.
 2NT: Invitational to 3NT, generally doesn’t have a 4-card major
               3©/3♠: 5-card suit with maximum
               3NT: maximum without 5-card major

Now for Stayman
                 2: denies a 4-card major, may have a 5-card minor. Nothing happens after this bid re: 5-card major

My goal is to be able to find a 5-card major whenever responder has a game-forcing hand, which is the requirement for the 2NT/3C ask. Also want to be able to find a 5-card major when responder has invitational strangth and opener has a maximum. In other words on your way to game opener shows a 5-card major. This case is not normally covered by 2NT/3C puppet Stayman.

 2: 4-5 Hearts, may have 4 Spades
                               2♠: GF has 4 Spades, 3+ Hearts(may be checking
for 5 Hearts)  or interested in 6NT/7NT , may have 5+ card minor
                                              2NT: No Spade fit, not 5 Hearts, maximum(may have 4 card minor)
                                                             3♣/3: GF 5+ minor
                                                             4♣/4: GF 4-5 minor, Sharples if 5 then want 4-card support
                                              3♣: 5 Hearts maximum; 3: agrees Hearts and slam try
                                              3: 4 Spades maximum; 3: agrees Spades and slam try
                                              3: 5 Hearts minimum
                                              3♠: 4 Spades, minimum
                                              3NT: No Spade fit, no 5-card Hearts, minimum
                                                             4♣/4: GF 4+ card minor Sharples
                                              4♣/4: GF 4-5 minor, Sharples if 5 then want 4-card support




                                      2NT: non-forcing Invitational, guarantees 4 Spades
                                              3: 5 Hearts and maximum
                                              3NT: 4 Hearts and a maximum
                              3♠: artificial GF setting Hearts as trump and a slam try, opener cue-bids





               2♠:  4-5 Spades, may not have 4 Hearts
                               2NT: non-forcing Invitational has 4 Hearts
                                             3♠: 5 Spades maximum
                                             3NT: 4 Spades maximum
 
                               3: artificial GF 3+ Spades(may just be checking for 5 Spades) or a hand interested in 6NT/7NT; doesn’t set Spades as trump
as may just be checking for 5 Spades with a GF hand, otherwise is a slam try.
                                              3♠: 5 Spades 
                                                             4♣: Sets Spades as trump and asks for HCP in steps
                                                                            may be prelude to 4NT RKC
                                                             4: Sets NT and asks for HCP in steps
                                                                            maybe prelude to 5♣ as Super-Gerber
                                              3NT: 4 Spades
                                                             4♣/4: same meaning as over 3♠

Sharples is a convention where 4C/4D after a Stayman response looks for a 4-4 minor fit for slam purposes. I am extending it's use to find 5-4 minor suit fits. Blackwood and RKCB are not used after Sharples.



Sunday, May 20, 2012

Unusual over Unusual defense to 2NT overcalls

The standard Unusual over Unusual uses the lowest cuebid(usually clubs) to show a limit raise or more in opener's suit and the higher suit(usually diamonds) to show a game force in the unbid suit.
My method uses the lowest cuebid(usually clubs) to show a good hand in lowest of our suits(usually hearts) and uses the highest cuebid(usually diamonds) to show a good hand with highest of our suit(usually spades). The reason I prefer this method as there is usually an available bid between the cuebid and the suit shown which can be used to show interest but not enough to bid game or for a slam try below game.

Over 1 opening:
1NT for the minors:
               Pass: 0-8 HCP
               Double: interest in penalty of at least one suit (9+ pts)
               2♣: 5-8+ HCP, 4 Hearts           2: 5-8+ HCP, 4 Spades
               2: 5-8 HCP, 5+ Hearts            2♠: 5-8 HCP, 5+ Spades
               2NT: 5-8 HCP 4-4 majors
               3♣: 9+ HCP, 4 Hearts              3: 9+ HCP, 4 Spades
               3: 9+ HCP, 5+ Hearts            3♠: 9+ HCP, 5+ Spades
               3NT: 9+ HCP 4-4 majors
 
For a passed hand adjust the HCP from 0-8 to 0-6, 5-8 to 4-6 and 9+ to 7-10(11)

2NT for the minors:
               Pass: 0-8 HCP
               Double: interest in penalty of at least one suit (9+ pts)
               3♣: 9+ HCP, 4+ Hearts            3: 9+ HCP, 4+ Spades
               Next step over 3♣/3:  asks if 4 card suit
               3: 5-8 HCP, 5+ Hearts            3♠: 5-8 HCP, 5+ Spades
               3NT: 9+ HCP 4-4 majors
For a passed hand adjust the HCP from 0-8 to 0-6, 5-8 to 4-6 and 9+ to 7-10(11)
Over 1 opening:

Overcall 2NT for Clubs and Hearts

Double shows the ability to penalize at least one suit.
Pass is weak
3 is limit+ raise in Diamonds
3 is natural and competitive
3 cuebid shows Spades GF
3♠ is natural and competitive

 Overcall 2NT for Minors
Double shows the ability to penalize at least one suit, possibly competitive Diamonds.
Pass is weak
3 is limit+ raise in Diamonds or GF in a Major
3 is natural and competitive
3 is natural and competitive
3♠ is natural and competitive

Over 1/1  opening:

Over a 2NT for the minors, Use a variation on unusual vs. unusual:

Double shows the ability to penalize at least one minor.
Pass hand not worth bidding
3 Major is a competitive raise (8-10 pts.).
3 of other major natural and competitive.
Club cuebid shows Hearts (Limit + over 1, GF over 1♠)
Diamond cuebid shows Spades (Limit + over 1♠, GF over 1

Saturday, April 21, 2012

Kaplan Style Inversion over 1H Opening


Kaplan Style Inversion Over 1


This could be used in 1st and 2nd seat inverting the forcing NT and 1♠ response to 1 when midchart conventions are in effect.

1♠: 0-4 Spades acts like a forcing NT
            1NT: (11)12-14(15) HCP balanced or 4+ Diamonds
                        2♣: ask
                                    2: 10-13 HCP 4+ Diamonds
                                    2: (11)(12)-13 HCP balanced
                                    2♠: 14-(15) HCP 4 Diamonds
                                    2NT: 14-(15) HCP balanced
                                    3: 12-13 HCP 5+ Diamonds
            2♣: 4+ Clubs 10-14(15) HCP
            2: NF 5+ Hearts 4 Spades 10-14(15) HCP

essentially Flannery and can play same responses at this point

            2: 6+ Hearts 10-13 HCP
            2♠: 5+ Spades and Lebenshol is in effect after this
            other bids retain their normal meaning

1NT: 5+ Spades
            2♣: (11)12-14(15) HCP balanced 2533 or 4+ Clubs
            2♠: 3+ Spades non-forcing
              2NT: 4+ Spades good fit and extremely good distribution
              3♠: 4 Spades good fit and good distribution (encouraging) Other bids similar to responding to over a 1♠ bid

Wednesday, April 18, 2012

Optional Treatment - 2NT as Puppet Stayman


1.1.       Use of 2NT as Puppet Stayman over 1NT


Have come up with a way to use regular Stayman to ask for 5-card majors in some case to view this method click: http://transferprecision.blogspot.ca/2012/06/using-regular-stayman-as-puppet-stayman.html

We want to use Puppet Stayman over 1NT and open 1NT with a 5-card major more freely, I propose you use 2NT. The 2NT bid will not be of much use, as now you will want to check for a 5-card major on a lot of hands. So with hands you still want to invite with 2NT, either pass or blast to 3NT. I have taken advantage of the fact that 2NT is one step lower than the traditional 3 puppet Stayman to mask which suit opener has a 4-card major in. It is only shown if responder asks for the suit. The use of 2NT avoids a lead directional double of 3♣.  Responses are simple

With a 5-card major bid 3©/3♠.

With a 4-card major bid 3♣. Then 3¨ asks for 4-card major 3NT is bid with both majors, 3/3♠ shows a 5 card suit with 3 cards in other major, 4♣, 4¨ is a natural slam try probably with a 5 card suit this bid also has same meaning after asking opener to show 4-card major.





With no 4 or 5 card major bid 3¨.

Other bids over 1NT retain their meaning.




















Monday, April 2, 2012

HCP Range for Opening Bids in Tprecision


1.1.       HCP Range for Opening with Balanced Hands


Balanced Hands
NV 1st & 2nd
Vul 1st & 2nd
3rd & 4th
1
13-16
(11)12 -13
12-14
1N
10-12
14-16
15-17
1♣-1-1N
17-19
17-19
18-19
2N
(19)20-21
(19)20-21
20-21
1♣-1-2N
22-23
22-23
22-23
1♣-1-3N
24-26
24-26
24-26
1♣-1♦-4N
27-28
27-28
27-28
4N
29-30
29-30
29-30

1.2.       HCP Range for Openings with Unbalanced Hands


Unbalanced Hands
NV 1st & 2nd
Vul 1st & 2nd
3rd
4th
1♣
16+
16+
17+
17+
1
(10)11-15
(10)11-15
10-17
12-17
1 /1♠
(10)11-15
10-14(15)
10-16
12-16
2♣
(10)11-15
10-14(15)
10-16
12-16
2
(10)11-15
10-14(15)
12-16
12-16
2/2♠
5-9(10)
5-9(10)
5-11
10-13