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List of bidding systems

This is a list of bidding systems used in contract bridge. Bidding systems are characterized as belonging to one of two broadly defined categories:

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

Natural five card majors systems

Strong club systems

Artificial one club systems

Strong diamond systems

Weak opening systems

Artificial systems

Other systems

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