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Bridge Conventions (List) Used against Precision oriented systems using 1C opening to show strong hand of 17+ HCP.
Double = shows both majors
1NT = shows both minors
Simple Strong Club Defense
A bidding convention is an agreement between two players on a different meaning of a bid in the card game bridge. These agreements are made so that partners can more quickly determine which contract, with both their cards, they can win together. Often, conventions are forged together into one, which is then called a bidding system.
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