LESSON 11.3: GERBER CONVENTION

a)

Dealer: South

North

Q 10 7
4
A K J 7 5 2
K 10 7

South

West

North

East

1NT

Pass

?

 

4 (unspecified hand) 1 round

A direct 4 bid over a 1NT opening is an ace-asking bid (Gerber convention)

b)

Dealer: South

South

A J 9 7
9 2
K Q 10 5
A J 8

South

West

North

East

1NT
?

Pass
 

4
 

Pass
 

4 (15-17 HCP   2 aces) 1 round

Responses to the Gerber convention

4   zero or four aces
4   one ace
4   two aces
4NT   three aces

c)

Dealer: South

North

Q 10 7
4
A K J 7 5 2
K 10 7

South

West

North

East

1NT
4

Pass
Pass

4
?

Pass
 

4NT (unspecified hand) closing

Any bid lower than 5 by the 4 bidder is a closing bid (except 5 asking for kings)

d)

Dealer: South

North

Q 10 7
4
A Q J 7 5 2
A 10 7

South

West

North

East

1NT
4

Pass
Pass

4
?

Pass
 

5 (unspecified hand) slam

The 5 bid confirms a total of four aces for the partnership and inquires for kings

e)

Dealer: South

South

A J 9 7
9 2
K Q 10 5
A J 8

South

West

North

East

1NT
4
?

Pass
Pass
 

4
5
 

Pass
 
Pass
 

5 (15-17 HCP   1 Roi) 1 round

Responses to the Gerber convention

5   zero or four kings
5   one king
5   two kings
5NT  three kings

g)

Dealer: South

North

J
4
A Q J 7 5 2
K 10 9 7 3

South

West

North

East

1NT
3

Pass
Pass

3
?

Pass
 

4 (10+ HCP   6+   4+ ) slam

4 is a natural bid showing a four-card or more suit; 4 is the Gerber convention only as a direct jump-response to a notrump opening

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