List of bidding systems

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This is a list of bidding systems used in contract bridge.[1][2] 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[edit]

Natural five card majors systems[edit]

Strong club systems[edit]

Artificial one club systems[edit]

Strong diamond systems[edit]

Weak opening systems[edit]

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

Artificial systems[edit]

Other systems[edit]


  1. ^ Francis, Henry G., Editor-in-Chief; Truscott, Alan F., Executive Editor; Francis, Dorthy A., Editor, Sixth Edition (2001). The Official Encyclopedia of Bridge (6th ed.). Memphis, TN: American Contract Bridge League. p. 44. ISBN 0-943855-44-6. OCLC 49606900. 
  2. ^ Lindkvist, Magnus (2002). Bridge, Classic and Modern Conventions. Bucharest, Romania: Arta Grafica. ISBN 978-91-631-1099-3. OCLC 82178176.