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The Gerber convention is a 4 response to a no-trumps bid. Like Blackwood, it is a slam investigation bid that asks partner how many aces he holds. The difference from Blackwood is that Gerber is only used for no-trumps. This is because 1NT-4NT is natural, inviting partner to bid 6NT.
- Exclusion Blackwood
A conventional 3NT ace-asking bid after a major-suit fit is...
- Bidding Principles
A Bols bridge tip about bidding five-over-five by the late...
- Meckwell Defense to 1NT
A defense to 1NT in which double shows a one-suited hand,...
- Bidding Systems
Bridge World Standard by The Bridge World A natural 2/1...
- Stayman
Stayman is a bridge convention used for locating a 4-4 major...
- Exclusion Blackwood
Gerber - A slam convention using the bid of 4 Clubs to ask partner to disclose the Aces held. Also see Super Gerber, which requires a Club jump to initiate Gerber. The most common usage of Gerber to investigate Ace "controls" is when the partnership has not found a suit fit and have bid Notrump.
Gerber is now seen as rather old-fashioned, although you will still find plenty of people who play it. It does have the virtue of keeping the bidding at a lower level if you don't get the answer you're looking for.
Gerber allows you to find out how many aces your partner has after an opening (or rebid) bid of 1NT or 2NT. Asking for aces (or keycards) is an incredibly important tool for slam bidding in a suit contract .
Gerber is a contract bridge convention devised by William Konigsberger and Win Nye from Switzerland [1] who published it in 1936; John Gerber of Texas introduced it to North America in 1938 where it was named after him.
TIP OF THE WEEK: Gerber, Quantitative 4NT, and other meanings of 4NT (Sources: Pat Harrington, Kwbridge, Donna Compton, Bridgehands, Karen’s Bridge Library. Gerber is a Slam Convention using the bid of 4C to ask partner how many Aces they hold.
Gerber. An alternative to 4NT (Blackwood) bid of 4♣ to ask for aces. Responses are. 4♦ shows zero (or all four) aces. 4♥ shows one ace. 4♠ shows two aces. 4NT shows three aces. If you then wish to ask about kings, bid 5♣ and partner responds.
