Gerber

• Bridge Conventions (List)

Gerber asks for aces when the partnership has agreed on a notrump contract. Gerber is used when partner's preceding bid was some level of NT.
Responses

  4D =0 or 4 aces  4D = 1 ace  4H = 2 aces  4S = 3 aces.   

The 4C bidder may then bid 5C goes on to ask for kings. Responses are
5D =0 or 4 kings
5D = 1 kings
5H = 2 kings
5S = 3 kings.

              S: AKQJx              H: AKxx              D: Qxx              C: x               S: xx              H: QJ              D: Kxxx              C: AKQJx  W        N       E        S                            1C P        1S      P        1N P        2D      P        2S P        3H      P        3N P        4C      P        4H P        6N      P        P/O 

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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