This is a list of bidding systems used in contract bridge. Systems listed have either had a 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 Kaplan–Sheinwold Majeure Cinquième Romex Roth–Stone 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 Vision Categoria:Sistema Vision
Strong diamond systems Big Diamond Quadri Italia Magic Diamond Leghorn Diamond (Livorno) Mirror Diamond 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
Other systems Amsterdam Club Bangkok Club Churchill Style Crane Dutch Spade Fiori Romano Kamikaze Notrump Monaco New South Wales Orange Club Pro System Simplified Club Sims Stone Age Acol With Pakistani Preempts Symmetric Relay Tokyo Standard Goulash Bidding Ultimate Club Walsh Winslow MMMMajor Bridge Bidding SystemMMMMajor Bridge Bidding System
References