When does Gerber apply? Here are some standard rules:
Agreements vary widely, so make sure to discuss it with your partners.
Response | Meaning |
---|---|
4 | 0 or 4 aces. |
4 | 1 ace. |
4 | 2 aces. |
4NT | 3 aces. |
After hearing partner's response, the Gerber bidder can bid 5 to ask for kings.
Response | Meaning |
---|---|
5 | 0 or 4 kings. |
5 | 1 king. |
5 | 2 kings. |
5NT | 3 kings. |
Opener | Responder |
1NT (15-17) | 4 |
Responder's hand:
K53
AJ
K3
KQJT73
Adding partner's 15-17 HCP to his own 17 HCP, responder knows that his side has 32-34 HCP. A small slam in no-trumps is possible, but the Gerber
Opener | Responder |
2NT (20-21) | 4 |
Responder's hand:
K3
KQJT98
KT
Q43
Responder is interested in 6 but worries about missing 2 aces. If partner shows all 4 aces, responder can bid
Opener | Responder |
3NT (25-27) | 4 |
Responder's hand:
T9
T98
5
AKJ9832
Responder is interested in a club slam.
Opener | Responder |
1NT (15-17) | 21 |
22 | 4 |
1 Stayman, asking for a 4-card major.
2 4 hearts.
Responder's hand:
KJ32
KQJ2
AJ82
3
Gerber can also be used as a jump rebid after a Stayman sequence. Here, responder is interested in
Opener | Responder |
21 | 22 |
2NT (22-24) | 4 |
1 Strong, artificial.
2 Waiting.
If a trump suit hasn't been identified yet, then 4 is Gerber after any natural no-trumps rebid.
Opener | Responder |
2NT | 31 |
32 | 4 |
1 Stayman.
2 Denies a 4-card major.
Responder's hand:
KJ32
KT92
—
AT983
4 is NOT Gerber. It is natural because it was not a jump.
Gerber was invented by American expert John Gerber.
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