Slam Bidding - Gerber Convention Ace Asking 

After you have discovered that your partnership has at least 33 combined points and the suit or lack of suit fit the Gerber is a bidding convention designed to describe the Aces held in partners hand to decide whether a grand slam or a small slam can be achieved. Gerber is usually invoked by one of the partners jumping to 4♣  where the club suit has not been bid by your side in the current auction.

Your partner's responses to your jump bid to 4♣ Gerber Convention is as follows:

 

Partners Gerber Bid	Your Reply	What your response means	Bidding Sequence
4♣	4♦	0  or all of the Aces (its usually very easy to tell)	4♣ - 4♦
4♣	4♥	1 Ace	4♣ - 4♥
4♣	4♠	2 Aces	4♣ - 4♠
4♣	4 NT	3 Aces	4♣ - 4 NT

Table of responses to Partners Ace Ask

Practice your Gerber Ace Asking Responses

Hand 1. What is your response with this hand after partners 4♣ Ace asking bid ?    4♦    4♥    4♠    4 NT

Hand 2. What is your response with this hand after partners 4♣ Ace asking bid ?    4♦    4♥    4♠    4 NT

Hand 3. What is your response with this hand after partners 4♣ Ace asking bid ?    4♦    4♥    4♠    4 NT

Hand 4. What is your response with this hand after partners 4♣ Ace asking bid ?    4♦    4♥    4♠    4 NT

Hand 5. What is your response with this hand after partners 4♣ Ace asking bid ?    4♦    4♥    4♠    4 NT

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