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Negative Doubles by Alvin Roth

A negative double replaces the penalty double in many sequences and becomes a takeout for the unbid suits, particularly the unbid major or majors. WHAT...

Marty Bergen: Secrets to Winning Bridge

Source: http://www.martybergen.com/ Worth Knowing about Negative Doubles A. They have no upper limit in strength. The same is also true for all other doubles! B. The only Negative...

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