Forcing Pass Bridge System

Forcing Pass Systems

Jan Eric Larsson Ben Cowling

June 19, 2001

1.1 Antidelta

Mean opening: 2.78 (hcp)

Antidelta is one of the systems presented by Lukasz Slawinski and Stanis-law Ruminski in their book Introduction to Weak Opening Systems. TheDelta system uses shortness openings, which gives the bidding very goodprecision. However, Slawinski and Ruminski felt that Deltas mean openingof 1.60 was too low, and thus devised Antidelta for the openings in firsthand. Whenever there is a shortness, (singleton or void), the opening bid is1; after a relay opener uses the Delta openings to describe his hand. In-formation from Henk Uijterwaal, Hamburg, Germany and Erich Friedman,De Land, Florida.

Antidelta Opening Bidspass 13+ any shape1 812 any singleton or void1 07 any shape1 812 45 hearts1 812 45 spades1N 812 balanced without major2 812 5+ clubs2 812 5+ diamonds2 812 6+ hearts2 812 6+ spades

After pass, the responder reopens with bids according to the Delta system,his limits being 610 points. After 1 the only forcing bid is 1N. Afterother opening bids, the nearest suit is a forcing relay bid while other bidsare natural and non-forcing.

1

1.2 Aron-Rosa

Mean opening: 2.96

Aron-Rosa was developed in 1979, on the night between the name days ofAron and Rosa, with Hakan Fransson as the chief architect. It has beenplayed by several pairs in Sweden and won at least two pairs competitions,in spite of its somewhat wild two level opening bids. It also served as a maininspiration for the Awkward system.

Aron-Rosa Opening Bidspass 1319 any shape1 812 5+ hearts1 812 5+ spades1 812 balanced1 812 minors1N 812 44+ in majors2 07 or 20+ 5+ hearts2 07 or 20+ 5+ spades2 07 or 20+ balanced2 07 or 20+ minors2N 07 or 20+ 44+ in majors

After pass, the responder opens in a similar way, his limits being 612 forthe one-level bids and 05 or 13+ for the two-level bids. After 1/, therelay is strong and the next relay, (preference of shown suit), is weak andsignoff.

2

1.3 Awkward

Mean opening: 2.85

Awkward was invented by Mats Berggren, Hakan Fransson, Anders Freij,Soren Romare, and Ulf Nilsson and played successfully in pairs and teamcompetitions in Sweden in the early eighties. One of its ancestors was theAron-Rosa system.

Awkward Opening Bidspass 13+ any shape1 812 5+ hearts1 812 5+ spades1 07 any shape

1214 balanced1 811 balanced1N 812 one 5 card minor2 711 6 diamonds

1215 4441/544020+ 5+ clubs

2 48 6 hearts1619 4441/544020+ 5+ diamonds

2 48 6 spades20+ 5+ hearts2021 balanced

2 711 6 clubs20+ 5+ spades2223 balanced

2N 010 weak preempt24+ balanced

The subsequent bidding is fairly natural, but often uses a single relay bid toshow an invitation or a game-forcing hand. The system also uses overcallsin the shortest suit to show two-suited hands in the defense.

3

1.4 Beta


Beta is one of the systems presented by Lukasz Slawinski and StanislawRuminski in their book Introduction to Weak Opening Systems. It wasinvented by Slawinski in 1964. Information from Erich Friedman, De Land,Florida.

Beta Opening Bidspass 07 any shape

17+ any shape1 812 balanced

1316 a 4 card major1 1316 no 4 card major1 812 4+ hearts, unbalanced1 812 4+ spades, unbalanced1N 812 44+ in majors2 812 5+ clubs2 812 5+ diamonds2 812 5+ hearts in onesuiter2 812 5+ spades in onesuiter

4

1.5 Big Beat


Big Beat is one of the systems presented by Lukasz Slawinski and StanislawRuminski in their book Introduction to Weak Opening Systems. It includestheir idea of showing shortnesses, (singletons and voids). Information fromErich Friedman, De Land, Florida.

Big Beat Opening Bidspass 812 major shortness

1317 any shape1 812 balanced

18+ any shape1 07 any shape1 812 minor shortness1 812 no shortness, 45 spades1N 812 no shortness, 45 hearts2 812 no shortness, 5+ cards2 812 no shortness, 5+ cards2 812 no shortness, 6+ cards2 812 no shortness, 6+ cards

5

1.6 Carrotti


Carrotti is a strong pass system based on the Carrot Club. It is currentlyplayed by Lars Andersson and Hans Gothe, who have introduced a weak (07) 1 for use when non-vulnerable. Information from Sven-Olof Flodqvist,Stockholm, Sweden, and Lars Andersson, Stockholm, Sweden.

Carrotti Opening Bidspass 1216 unbalanced

1517 balanced1 911 balanced

17+ any shape1 08 balanced

07 unbalanced1 811 4+ hearts1 811 4+ spades1N 1214 balanced2 811 6+ clubs or 54 in minors2 811 6 diamonds or 55+ in minors2 611 55+ in roundeds or pointeds2 611 55+ in blacks or reds2N 611 55+ in majors or minors

When 1 shows 07, (non-vulnerable), the system is called Carrotti witha Twist. It has a mean opening of 2.56 when non-vulnerable and 2.45 inaverage.

6

1.7 Delta


Delta is one of the systems presented by Lukasz Slawinski and StanislawRuminski in their book Introduction to Weak Opening Systems. It includestheir idea of showing shortness instead of length in suits. Information fromErich Friedman, De Land, Florida.

Delta Opening Bidspass 13+ any shape1 812 no shortness1 07 any shape1 812 short spades1 812 short hearts1N 812 short diamonds, 5+ major2 812 short diamonds2 812 short clubs2 812 short clubs, 5+ hearts2 812 short clubs, 5+ spades2N 812 short clubs, 55+ in majors

After pass, the responder reopens with similar bids, his limits being 610 points. After 1 the only forcing bid is 1N. After other opening bids,the nearest suit is a forcing relay bid while other bids are natural and non-forcing.

The following version of Delta is described by Pekka Viitalsalo, Espoo,Finland. Its mean opening is 1.60.

Finnish Delta Opening Bidspass 13+ any shape1 812 no shortness1 07 any shape1 812 short hearts

812 short clubs, 5+ major1 812 short spades1N 812 short diamonds, 5+ major2 812 short diamonds2 812 short clubs2 812 short clubs, 4441/54402 812 short clubs, 5+ spades

Since it has a low mean opening, Delta has almost exclusively been usedfor responses after pass in other systems, most notably Regres.

7

1.8 Diamond Heart

Mean opening: 3.12

This system is a strong pass version of the Tangerine Club, where the bidspass, 1, and 1 have been changed around. The Tangerine Club wasdeveloped by Jan Eric Larsson and Soren Romare, Lund, sweden, and usedin Sweden in the late seventies and early eighties.

Diamond Heart Opening Bidspass 1014 4+ diamonds

1011 exactly 3334 distribution1 89 balanced

15+ any shape1 1014 4+ hearts1 07 any shape

09 5+ clubs1 1014 4+ spades1N 1214 balanced, no 5 card major2 1014 5+ clubs2 59 5+ diamonds2 59 5+ hearts2 59 5+ spades2N 09 7+ suit

The responses to 1 are natural and Precision-like, with 2N as game forceagainst the weak variant and (almost) slam force against the strong variant.The subsequent bidding can use Italian-style asking bids or a relay system.After 1N, 2 is invitational and 2 game-forcing Stayman. Tangerine usesreverse limits in diamonds. The opening frequency of the weak 1 is 8.09%and of the strong 22.86%, i.e., it is weak in 26% and strong in 74% of thecases.

8

1.9 Dutch Spade


This system was invented by Max Rebattu in 1982, while sitting at the beachone sunny day. The idea is simply to shift the openings from pass to 1around to make 1 the weak bid, while pass replaces 1, 1 replaces 1,and so on. This can be done with any system as a base. The first versionused Dutch Acol, and was played by Maas and Rebattu. Information fromHenk Uijterwaal, Hamburg, Germany.

So... You can start with any system you like (probably ACOL) and thenmake the necessary Dutch Spade modifications to it. I.e. shift the openingsround to make 1 into the weak bid, let pass replace 1, and so on as detailedabove.

9

1.10 Lai Forcing Pass


A system developed by Ruey-Gang Lai. Information from the RGB archive.

Lai Forcing Pass Opening Bidspass 08 any shape

15+ any shape1 914 1+ clubs1 914 5 diamonds1 914 5 hearts1 914 5 spades1N 1315 balanced2 69 55 in majors

811 54 in majors2 58 6 hearts or spades

58 55+ in minors2122 balanced

2 1214 5 hearts and 4 in a minor2 1214 5 spades and 4 in a minor2N any solid 7+ suit

After pass, 1 is an artificial relay, while 1 is 07. The subsequent biddinguses relays and asking bids.

10

1.11 Lambda


Lambda is one of the systems presented by Lukasz Slawinski and StanislawRuminski in their book Introduction to Weak Opening Systems. It includesguessing of partners distribution in free tempo and has been played byHakan Fransson and Jan Eric Larsson, Sweden. They later switched toMajor, mainly because it seemed more efficient to concentrate the biddingtowards showing major holdings.

Lambda Opening Bidspass 13+ any shape1 812 balanced or 44411 07 any shape1 812 54+ in + or +1 812 54+ in + or +1N 812 54+ in + or +2 812 5+ 2 812 5+ 2 812 5+ 2 812 5+

After pass, the responder reopens with similar bids, his limits being 610 points. After 1 the only forcing bid is 1N. After other opening bids,the nearest suit is a forcing relay bid while other bids are natural and non-forcing. In free tempo, the responder guesses the openers distribution andbids based on this.

11

1.12 Major


Major is one of the early systems presented by Lukasz Slawinski and Stanis-law Ruminski in their book Introduction to Weak Opening Systems. Majorwas played by Hakan Fransson and Jan Eric Larsson in Sweden in the eight-ies.

Major Opening Bidspass 13+ any shape1 812 34 34 1 07 any shape1 812 34 02 1 812 02 34 1N 812 02 02 2 812 5+ 34 2 812 34 5+ 2 812 5+ 02 2 812 02 5+ 2N 812 5+ 5+


12

1.13 Mandarine Club

Mean opening: 3.13

This system is a strong pass version of the Tangerine Club, where the bidspass and 1 have been switched, (see the description of Tangerine). TheTangerine Club was developed by Jan Eric Larsson and Soren Romare, Lund,sweden, and used in Sweden in the late seventies and early eighties.

Mandarin Club Opening Bidspass 1014 4+ diamonds

1011 exactly 3334 distribution1 89 balanced

15+ any shape1 07 any shape

09 5+ clubs1 1014 4+ hearts1 1014 4+ spades1N 1214 balanced, no 5 card major2 1014 5+ clubs2 59 5+ diamonds2 59 5+ hearts2 59 5+ spades2N 09 7+ suit

The responses to 1 are natural and Precision-like, with 2N as game forceagainst the weak variant and (almost) slam force against the strong variant.The subsequent bidding can use Italian-style asking bids or a relay system.After 1N, 2 is invitational and 2 game-forcing Stayman. Tangerine usesreverse limits in diamonds. The opening frequency of the weak 1 is 8.09%and of the strong 22.86%, i.e., it is weak in 26% and strong in 74% of thecases.

13

1.14 No Name System


No Name is one of the systems presented by Lukasz Slawinski and Stanis-law Ruminski in their book Introduction to Weak Opening Systems. It isan ancestor to the Suspensor system. Information from Henk Uijterwaal,Hamburg, Germany.

No Name Opening Bidspass 13+ any shape1 812 35 cards in both majors1 07 any shape1 812 02 or 6+ hearts1 812 02 or 6+ spades1N 812 54 in or 2 812 54 in or 2 812 45 in or 2 812 45 in or 2 812 55+ in majors or minors2N weak preempt in any suit

After 812 opening bids, the nearest suit is a forcing relay bid while otherbids are natural and non-forcing. In free tempo, the responder guesses theopeners distribution and bids based on this.

14

1.15 Regres


Regres is the most successful of the systems presented by Lukasz Slawin-ski and Stanislaw Ruminski in their book Introduction to Weak OpeningSystems. Additional information from Pekka Viitasalo, Espoo, Finland.

Regres Opening Bidspass 13+ any shape1 812 any singleton or void1 07 any shape1 812 34 hearts1 812 34 spades1N 812 57 card major2 812 57 clubs2 812 57 diamonds2 812 55+ in roundeds or pointeds2 812 55+ in blacks or reds2N 812 55+ in majors or minors

After pass, the responder reopens with bids according to the Delta system,his limits being 610 points. After 1 the only forcing bid is 1N. Afterother opening bids, the nearest suit is a forcing relay bid while other bidsare natural and non-forcing.

15

1.16 Sandgroper


Sandgroper was developed by Ian Casselton and played by Ian Casseltonand Geoff Pocock, both lads in their mid twenties, who have played forAustralia, (youth), a couple of times. Sandgroper is a colloquial expressionfor a West Australian. Information form Dennis Yovich, Perth, Australia.

Sandgroper Opening Bidspass 06 any shape

712 4333/4432/444117+ balanced or 4441

1 1316 unbalanced1 712 5+ hearts

17+ 5+ hearts1 712 5+ spades

17+ 5+ spades1 712 5+ clubs

17+ 5+ clubs1N 1316 balanced2 712 5+ diamonds

17+ 5+ diamonds2 712 54+ in diamonds and another2 712 55+ without spades2 712 55+ with spades2N weak preempt in clubs

sound preempt in diamonds

The same type of multi preempts are used on the rest of the three level.

16

1.17 Schizo Club


The Schizo Club was developed by Steve Starkey, Pecs, Hungary.

Schizo Club Opening Bidspass 07 balanced

1620 any shape1 811 unbalanced

21+ any shape1 07 unbalanced

1214 balanced1215 4+ diamonds

1 07 unbalanced, 4+ hearts1215 5+ hearts

1 07 unbalanced, 4+ spades1215 5+ spades

1N 811 balanced1517 balanced

2 1215 5+ clubs2 811 5+ major

2122 balanced2 811 44+ in majors2 811 any 6+ suit2N 811 54+ in minors

Most responses are natural, but pass1, 11, and 1N2 are invita-tional relays.

17

1.18 Sigma


Sigma is Ruminskis and Slawinskis natural system.

Sigma Opening Bidspass 13+ any shape1 812 4441 or 54401 07 any shape1 812 45 hearts1 812 45 spades1N 812 balanced2 812 5+ clubs2 812 5+ diamonds2 812 6+ spades2 812 6+ spades2N 812 55+ in majors


18

1.19 Suspensor


This system is similar to the No Name system, and was invented and playedby Balicki and Zmudzinski. This is the version from 1990. Information fromHenk Uijterwaal, Hamburg, Germany.

Suspensor Opening Bidspass 13+ any shape1 812 35 cards in both majors1 07 any shape1 812 02 or 6+ hearts1 812 02 or 6+ spades1N 812 54 in or 2 812 54 in or 2 812 45 in or 2 812 45 in or 2 812 55+ in majors or minors2N weak preempt in any suit

After 812 opening bids, the nearest suit is a forcing relay bid while otherbids are natural and non-forcing. In free tempo, the responder guesses theopeners distribution and bids based on this.

19

1.20 Swan


The Swan system was invented by Jan Eric Larsson. The name meansSystem With A Name and was inspired by the Polish No Name system.

Swan Opening Bidspass 13+ any shape1 812 4441 or 54401 07 any shape1 812 34 hearts1 812 34 spades1N 812 34 hearts and 34 spades2 812 5+ clubs2 812 5+ diamonds2 812 5+ spades2 812 5+ spades2N 812 55+ in majors


20

Date post:	12-Oct-2015
Category:	Documents
Upload:	-
View:	70 times
Download:	7 times

Forcing Pass Bridge System

Documents