Main
Detail specifications 21LJ - Level 2 ★
Gerber convention
Gerber convention
In response to a 1NT opening,
In response to a 1NT opening,
- 4NT is a quantitative bid, asking the opener to bid a small slam if he holds a maximum hand (16-17 HCP).
- The Gerber 4♣ is a convention bid, asking the opener how many Aces he has... It is a very easy to remember convention, and very useful when the responder holds a strong unbalanced hand
| S | W | N | E |
|---|---|---|---|
 |
 |
||
 |
Problem E20526 The only thing that matters here is to know how many Aces the opener has in hand. If he's got 2 of them...small slam, indeed !
Developments
The responses to a 4♣ Gerber conventional bid are quite usual :
The responses to a 4♣ Gerber conventional bid are quite usual :
- 4♦ 4 or 0 Ace
- 4♥ 1 Ace
- 4♠ 2 Aces
- 4NT 3 Aces
| S | W | N | E |
|---|---|---|---|
|
|
|
|
 |
Problem E20528 In response to his partner's 4♣ (Gerber), the opener bids 4♠ to show 2 Aces. The responder will safely call a small NT slam. Had the partner used a 4NT quantitative bid, they would have missed this slam, as the opener has a minimum 1NT opening hand.
FR version