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Bridge Conventions (List)
An Opening bid of 4NT shows 24+HCP and asks for aces
Responses are:
5C shows no aces
5D, 5H, 5S, 6C shows that ace
5NT shows two aces.
ACOL Four-Notrump Opening
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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