LITTLE KNOWN BRIDGE CONVENTIONS
Throughout the history of bridge, there have been many conventional methods of handling certain card combinations, distribution of length, and two-suited holdings. The popularity of such conventional methods have been discussed, analyzed and scrutinized by the bridge playing public. It was this bridge playing public which offered acceptance of each and every conventional method published. The bridge playing community was the first critic and last judge as to whether a conventional method was acceptable and accepted.
We would like to offer on this page a list of those conventional methods which did not quite make the Top Ten List of conventional methods used by the bridge player, but which continue to be used by several bridge players. We do not believe that these conventional methods should be completely discarded and forgotten on the shelf collecting dust.
Some have a place at the bridge table owing to their merit, but, as always, the bridge player must decide for himself whether any of the following conventional methods can and should be adopted. If so, then please make your opponents at the bridge table aware that you are using it or them.
Albarran - De Nexon ResponsesAmbra
The origin of this designation is unknown. This is a compilation, with added variations, of the methods based on the Two Over One bidding system devised by Mr. Benito Garozzo for the Italian 2000 World Junior Championships. If the reader would prefer the system in .pdf file form in Italian, then, depending on the browser, the file will be either downloaded to your computer and opened with Adobe Acrobat Reader or opened within the browser. The second choice is the documentation in MicroSoft Word format in English, which can be sent to the interested party via email.
Auby-rutern or Auby Diamond
This is a system that was designed for playing only when non-vulnerable and was developed by Mr. Daniel Auby. It is played in association with the Carrot Club bidding system developed in Sweden.
August Two Diamonds - August 2 Diamonds
The August 2 Diamonds conventional treatment is a variation of the Two-Way Stayman
bid after an opening or overcall of 1 No Trump by partner.
Bernier System - Bernier Big Club
This bidding system was devised by Mr. Jerry Bernier
and Mr. Mike Schmenk in the 1960s, and is also known as the Bernier Big
Club.
Beta Convention
In the early stages of developing the game of bridge, a need arose for opening a weak Club, mainly to obstruct the bidding of the opponents. However, the concept grew and evolved to employ other opening bids to reflect a certain distribution of the holding and the strength of the holding. Thus was Beta born, devised by Mr. Pierre Collet of France around 1969. The concept is to inform
the partner as quickly as possible the structure of the opening hand.
Biedermeijer - In English. This web page has been translated by Mr. Anton van Uitert and we owe him a debt of gratitude for taking the time and effort to supply us with the translation and thank him for his contribution.
Biedemeijer Blue - In Dutch.
Biedermeijer Blue - In English. This web page has been translated by Mr. Gerben Dirksen and we owe him a debt of gratitude for taking the time and effort to supply us with the translation and thank him for his contribution.
Biedermeijer Green - In Dutch.
Biedermeijer Green - In English. This web page has been translated by Mr. Mike Deloof, who lives in Belgium. We owe him a debt of gratitude for taking the time and effort to supply us with the translation and thank him for his contribution.
Biedermeijer Red - In Dutch.
Boland Convention - Boland Slam Try
The origin of this bidding method is unknown, but is most likely the conclusions of Mr. V.F. Boland and Mr. John H. Law, two bridge experts and authors, who published their studies 1931 in the book: Accurate Contract Bridge. This is a method of slam exploration after one partner opens especially with a 1 No Trump, but which can also be applied with a 2 No Trump opening, and the responder jump raises to 4 No Trump.
Bromad Convention
The initials stand for Bergen Raise Of Major After Double, and as the name indicates this conventional treatment uses a 2 Club bid to show a certain support length and support count as opposed to a Direct Raise.
CAB
A bidding system used in England during the Fifties which enjoyed some popularity.
Cambridge Standard Opening Bids
A chart showing the significance of opening bids used by several bridge partnerships, especially in England.
Carrot Club Bidding System
This is the English version of the Carrotski Club. Included is Interference After a Two-Way Club Opening and responses after a 1 No Trump opening. A forcing club system devised 1988 by Mr. Hans Göthe, Mr. Sven-Olov Flodqvist, Mr. Per Olof Sundelin, Mr. Tommy Gullberg, Mr. Anders Morath and Mr. Sven-Åke Bjerregård of Sweden.
Clement Oliver Opening Bids
A partnership understanding for opening bids as devised by Mr. Bruce Clement and Mrs. Pam Oliver of Wellington, New Zealand.
Cobra
Computer Oriented Bridge Analysis is the result of feeding a computer certain elements of the evaluation and distributional factors of card combinations by Mr. E.T. Lindelof.
DOBD or D.O.B.C.
This conventional defense mechanism is unknown. It is employed after an opponent has opened the auction with a strong, artificial 1 Club. The designation is most probably an acronym for Disturbing Opponent's Big Club.
Dutch Acol Openings
A variation of the ACOL bidding system used by bridge partnerships in The Netherlands.
Flint Three Clubs - Flint 3 Clubs
The Flint Three Club convention allows the partnership to stop in a 3 Diamonds contract, or three of a Major suit after a 2 No Trump opening. A 3 Club response forces the opener to bid 3 Diamonds, after which the responder then passes or signs off in a Major suit.
Flint Two Diamonds - Flint 2 Diamonds
A second modification of the Flint convention is the Flint Two Diamond Convention, and is used to investigate game in a No Trump contract or a Minor suit after a Weak No Trump Opening. A 2 Diamonds response shows either a hand with a solid Minor suit or an unbalanced hand with at least four cards in each Minor suit.
Gardener No Trump Overcall
Devised by Mr. Nico Gardener, London. As a defense mechanism, a 1 No Trump overcall can be very effective. It is definitely obstructive. However, the Gardener No Trump overcall has two interpretations.
Granville Convention
Although the origin is unknown, the general consensus is that this conventional method was developed in England. It is sometimes referred to as the Kaplan Interchange, although it has little to do with the Kaplan-Sheinwold Bidding System. The problem arose owing to a particular problem presented mostly in the Two Over One bidding system.
Halsall Convention
A bidding treatment to show a two-suited hand over a preempt, generally on the Three Level.
Hardy Adjunct to New Minor Forcing
The origin of this concept is unknown. When the partnership has agreed to employ the Hardy Adjunct after a New Minor Forcing bid by the responder, then the opener can further clarify his holding and shape or pattern.
Inverted Psycho Suction - A defense mechanism after a No Trump opening, devised by Mr. Thomas Andrews.
Kabel Three No Trump Opening - Kabel 3 NT Opening
The origin of this conventional method is unknown. The concept is to determine the location of specific Aces and Kings with an opening of 3 No Trump. The opening bid is forcing and implies a very strong holding with fewer than three Losing Tricks. After determing whether partner holds any specific values and the location thereof, the opener is then able to set the correct contract at the correct level.
Kamikaze No Trump
The Kamikaze No Trump is a bidding system devised by Mr. John Kierein. The concept was to open a holding in First or Second Seat with a total of 9 to 12 high card points. After the ACBL regulated that any No Trump opening with less than 10 high card points could not apply the usual conventions such as Stayman, Mr. John Kierein altered his Kamikaze No Trump opening to show values between 10 and 13 high card points.
Kantar Kleinman Slam Force
Mr. Eddie Kantar and Mr. Danny Kleinman, during their play as bridge champions, devised separately a method of reaching slam. Since their method reached the bridge community about the same time, this method became known as the Kantar-Kleinman Slam Force.
Kaplan Interchange
Although the origin is unknown, the general consensus is that this conventional method was developed in England. It is mainly referred to as Granville, although it has little to do with the Kaplan-Sheinwold Bidding System. The problem arose owing to a particular problem presented mostly in the Two Over One bidding system.
Kiri Asking Bid
The origin of this designation is unknown. The concept serves only one purpose and is employed only after one partner, whose partner has not previously passed, opens the auction with 1 No Trump. The responder, with game forcing values and the correct distribution, first responds with 4
. The opener, with this Kiri Asking Bid, is required to describe the strength of the No Trump opening.
Liberty Double
The Liberty defense mechanism versus the Multi offensive mechanism is used when the opponents opening bid has multiple weak possibilities with no known suit. This defense mechanism is designed to increase the possibility of penalties while also providing, at the same time, some blocking bids. The main feature is the Liberty Double made directly over the Multi bid.
Major Minor Canape - MamiC
The concept of the MamiC Opening Bid system was devised by Mr. Richard Lighton of New Jersey around 1990. The concept is based on the Major-Minor-Canape opening bidding system.
Mock Swedish
This is a opening bidding system devised in 1993 by Mr. Richard Lighton of New Jersey, who was fascinated by the Muppet Show created by Mr. Jim Henson.
Ping Pong Convention
This bidding method is to assist the opener to further clarify his holding when the first rebid by the opener is 1 No Trump, which can signify various hand types.
Psycho Suction
A defense mechanism after a No Trump opening, devised by Mr. Thomas Andrews.
Roudy Convention - Roudi Convention
This conventional method was devised by Mr. Jean-Marc Roudinesco of France. This conventional method is popular in the country of France and is applied after the opener has rebid 1 No Trump after a suit opening. With a forcing 2 Clubs rebid by the responder the opener is required to further clarify his holding.
Stenberg
The origin of Stenberg is not known, but it is a variation on the Limit Major Raises. Included are the rebids by the opener and several by the responder with the corresponding meanings.
Swedish Jacoby 2 No Trump
This is a variation of the Jacoby 2 No Trump used in Limit Raises. This variation is played in Sweden and has gained some popularity.
Tape Relay System
The Tape Relay bidding system was devised by Mr. Donald Evans, and uses a Forcing Pass as an opening bid in any seat, after prior players, opponents or partner, have passed.
Tiroler Berg Weak Two Bids
The origin of this conventional method is unknown. The basis of the concept is the Weak Two bid in either Major suit with the original opening showing a specified suit. The opening can have several meanings, which are then clarified by the rebids.
VROOM Defense to 1 No Trump Openings
Mr. Mohamed Abdel Bari summarized and Mr. Scott Bennett Graham contributed this defense to 1 No Trump openings by the opponents.
The Weak 6-4 Method
This concept was devised as an augmentation to the convention New Minor Forcing. The foundation of the concept is, as a responder, the ability to show a particularly distributional holding of 6-4 and generally weak values.
Wittes Adjunct to New Minor Forcing
The origin of this treatment is unknown. When employing New Minor Forcing as the partnership agreement, the partnership may wish to show the quality of the opener's holding in the responder's Major suit.
Woodgroves Multi
The Woodgroves Multi convention begins with the opener bidding 2 Diamonds. The holding of the opener can vary according to the partnership understanding and will be clarified during the ensuing auction. The employment of the Woodgroves Multi is to some degree questionable and should be cleared with the governing bridge organization.
Yellow Rose of Texas Convention - This conventional method is one of many invented by Mr. Danny Kleinman and this presentation is a contribution of Mr. Danny Kleinman, and which are published in his book called A Cornucopia of Conventions. This particular conventional method is employed after the partner has opened the auction with 1 No Trump or 2 No Trump, and the partnership agreement is to use also Texas Transfers.
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