List of bidding systems

This is a list of bidding systems used in contract bridge.^[1]^[2] Systems listed have either had an historical impact on the development of bidding in the game or have been or are currently being used at the national or international levels of competition.

Bidding systems are characterized as belonging to one of two broadly defined categories:

natural bidding systems and
artificial bidding systems.

Nevertheless, each contains elements of the other given the number and variety of treatments and conventions that have been developed by bridge bidding theorists.

Natural four card majors systems

5-4-4-3 System
Acol
Baron, an English system developed in the 1940s by Leo Baron, Adam Meredith and others.
CAB, acronym for Two Clubs, Ace-asking and Blackwood
Canapé
Colonial Acol
Culbertson
EFOS, the Economical Forcing System developed by Eric Jannersten and others in Sweden in the sixties and seventies
EHAA, acronym for Every Hand An Adventure
Four Aces Team
Goren
Nordic
Official System
Reith One-over-one

Natural five card majors systems

2/1 game forcing
5-5-4-2 System
5-5-5-1 System
Aces Scientific
Alpha
Bridge World Standard
Eastern Scientific
Five Card Majors
Majeure Cinquième
Romex
Roth–Stone
Kaplan–Sheinwold
Standard American
Western Scientific

Strong club systems

Blue Club
Black Club
Canary Club
Carrot Club
French Club
Hybrid Club
Icelandic Precision
Modified Italian Canape System (MICS), constructed and published by Ken Rexford
Moscito
Neapolitan Club
Nottingham Club
Power Precision Club
Precision Club
Schenken Big Club
Simplified Precision
Super Precision Club
Ultimate Club
Vanderbilt Club

Artificial one club systems

Betangina
Bissell
Lea System
Little Roman Club
Polish Club
Power Club
Roman Club
Swedish Club
Trefle Squeeze
Vienna

Strong diamond systems

Big Diamond
Magic Diamond
Leghorn Diamond (Livorno)
Mirror Diamond^[3]
CS System

Weak opening systems

Carrotti
Delta
No Name
Regres
Säffle Spade, a forcing Pass system

Artificial systems

HUM Systems
Little Major
Marmic
Relay Systems

Losing trick count systems

Imperspicuity^[4]

Other systems

Amsterdam Club
Bangkok Club
Churchill Style
Crane
Dutch Spade
Kamikaze Notrump
Monaco
New South Wales
Orange Club
Pro System
Simplified Club
Sims
Stone Age Acol With Pakistani Preempts
Symmetric Relay
Ultimate Club
Walsh
Winslow
Cliff Yang
MMMMajor Bridge Bidding System^[5]

References

^ Francis, Henry G.; Truscott, Alan F.; Francis, Dorthy A., eds. (2001). The Official Encyclopedia of Bridge (6th ed.). Memphis, TN: American Contract Bridge League. p. 44. ISBN 0-943855-44-6. OCLC 49606900.
^ Lindkvist, Magnus (2002). Bridge, Classic and Modern Conventions. Bucharest, Romania: Arta Grafica. ISBN 978-91-631-1099-3. OCLC 82178176.
^ "Mirror Diamond". Archived from the original on 2018-08-15. Retrieved 2020-03-07.
^ Lynch, Sean (2017). IMPERSPICUITY A Losing Trick Count Bridge Bidding System. Kindle Book: Amazon.
^ MMMMajor Bridge Bidding System

Contract bridge

Overview

General

Bidding

General	Balanced hand Balancing (bridge) Bidding box Bidding system Board (bridge) Bridge convention Brown sticker Convention card Cue bid Five-card majors Forcing bid Forcing pass Game try Hand evaluation Honor point count Inverted minors Law of total tricks Losing-Trick Count Major suit Minor suit Optimum contract and par contract Overcall Preempt Prepared opening bid Principle of fast arrival Psychic bid Quantitative notrump bids Reverse (bridge) Sacrifice (bridge) Shooting (bridge) Single suiter Stolen bid Strong pass Takeout double Three suiter Two suiter Useful space principle Void (cards) Weak two bid Zar Points
Systems	List of bidding systems 2/1 game forcing Acol Bidding system Blue Club Boring Club Bridge Base Basic Bridge World Standard Canapé (bridge) Carrot Club EHAA Fantunes Highly unusual method Kaplan–Sheinwold Little Major Moscito Polish Club Precision Club Roman Club Romex system Säffle Spade Standard American Strong club system
Conventions	List of bidding conventions

Card play

General	List of play techniques Avoidance play Beer card Caddy Card reading Duck Endplay Entry Grosvenor gambit Hold up Percentage play Pin (bridge) Principle of restricted choice Probabilities Revoke Ruff Shooting Smother play Tempo Trump promotion Uppercut Vacant Places
Declarer play	Basic: Finesse Safety play Coups: Alcatraz coup Bath coup Belladonna coup Coup Coup en passant Crocodile coup Deschapelles coup Devil's coup Loser on loser Merrimac coup Morton's fork coup Scissors coup Trump coup Vienna coup Squeezes: Backwash squeeze Cannibal squeeze Clash squeeze Compound squeeze Criss-cross squeeze Double squeeze Entry squeeze Entry-shifting squeeze Guard squeeze Knockout squeeze Non-simultaneous double squeeze Progressive squeeze Pseudo-squeeze Saturated squeeze Simple squeeze Simultaneous double squeeze Single-suit squeeze Squeeze play Stepping-stone squeeze Strip squeeze Triple squeeze Trump squeeze Vice squeeze Winkle squeeze Suit combinations: Suit combination
Defender play	Forcing defense Journalist leads Opening lead Rule of 10-12 Rule of 11 Rusinow leads Signal Smith signal

People and organizations

General	ACBL Youngest Life Master List of contract bridge people List of nationality transfers in sport Bridge Headquarters
Players by country	Australia Austria Brazil Britain Bulgaria Canada China Denmark Netherlands Egypt England Fiction France Germany Hungary India Ireland Israel Italy Mexico Monaco New Zealand Norway Pakistan Poland Russia Sweden Switzerland Taiwan United States
Other lists	List of bridge people with Wikipedia (English) articles List of bridge administrators List of bridge writers
Teams	Blue Team Dallas Aces Four Aces
Clubs	Bridge Base Online Cavendish Club Crockford's Galatasaray Bridge Team Melville Bridge Club Portland Club (London) Savoy Club
Governing bodies	American Bridge Association American Contract Bridge League Austrian Bridge Federation Brazilian Bridge Federation British Bridge League Canadian Bridge Federation Dutch Bridge Federation English Bridge Union European Bridge League Hungarian Bridge Federation International Mind Sports Association List of contract bridge governing bodies Norwegian Bridge Federation South African Bridge Federation United States Bridge Federation World Bridge Federation

Championships

General	List of bridge competitions and awards
World	Bermuda Bowl Bridge at the 2008 World Mind Sports Games Bridge at the 2012 World Mind Sports Games Cavendish Invitational Computer Olympiad McConnell Cup Rosenblum Cup Senior Bowl (bridge) Triple crown of bridge Venice Cup WBF Youth Award World Bridge Championships World IMP Pairs Championship World Junior Pairs Championship World Junior Teams Championship World Mind Sports Games World Mixed Pairs Championship World Mixed Teams Championship World Open Pairs Championship World Senior Pairs Championship World Senior Teams Championship World Team Olympiad World Transnational Open Teams Championship World Women Pairs Championship
National and Zonal	Buffett Cup Camrose Trophy Commonwealth Nations Bridge Championships European Universities Bridge Championships Gold Cup (bridge) North American bridge Championships: ACBL King or Queen of Bridge Edgar Kaplan Blue Ribbon Pairs Bruce LM–5000 Pairs Chicago Mixed Board-a-Match Fall National Open Pairs Fast Open Pairs Fishbein Trophy Goren Trophy Grand National Teams Hilliard Mixed Pairs Jacoby Open Swiss Teams Keohane North American Swiss Teams Lebhar IMP Pairs Leventritt Silver Ribbon Pairs Machlin Women's Swiss Teams Manfield Non-Life Master Pairs Marcus Cup Master Individual Mini-Blue Ribbon Pairs Mini-Spingold Mitchell Board-a-Match Teams Mott-Smith Trophy Nail Life Master Open Pairs National 199er Pairs National 49er Pairs National 99er Pairs Non-Life Master Swiss Teams Norman Kay Platinum Pairs North American Bridge Championships North American Pairs Red Ribbon Pairs Reisinger Rockwell Mixed Pairs Roth Open Swiss Teams Senior Knockout Teams Silodor Open Pairs Smith Life Master Women's Pairs Spingold Sternberg Women's Board-a-Match Teams Truscott Senior Swiss Teams United States Bridge Championships - Open Vanderbilt Trophy Von Zedtwitz Life Master Pairs Wagar Women's Knockout Teams Wernher Open Pairs Whitehead Women's Pairs Young LM–1500 Pairs

Publications and resources

Books	List of contract bridge books Master Point Press Bibliographies: Edwin Kantar bibliography Hugh Kelsey bibliography Terence Reese bibliography Books: 25 Bridge Conventions You Should Know Bridge Squeezes Complete The Cardturner Contract Bridge for Beginners Design for Bidding The Official Encyclopedia of Bridge Planning the Play of a Bridge Hand Right Through the Pack Tickets to the Devil
Magazines	List of contract bridge magazines Magazines: Bridge d'Italia Bridge Magazine The Bridge World
TV and Radio	Grand Slam (BBC TV)
External links	Bridge Base Basic