LESSON 11.6: MEANING OF FOUR-NOTRUMP BIDS

a)

Dealer: South

South

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

South

West

North

East

1
4NT (?)

Pass
 

3
 

Pass
 

4NT Blackwood

A jump to 4NT after agreeing a suit as trump is always the Blackwood convention

b)

Dealer: South

South

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

South

West

North

East

1
4NT (?)

Pass
 

2
 

Pass
 

4NT Blackwood

A 4NT response is not Blackwood when no suit has been declared during the auction

c)

Dealer: South

North

A Q
K J 10
A 10 8 6
Q 7

South

West

North

East

1NT

Pass

4NT (?)

 

4NT natural

A 4NT opening is always the Blackwood convention

d)

Dealer: South

South

A Q J 7
K J 10
K Q J
A K J

South

West

North

East

4NT (?)


 


 


 

4NT Blackwood

A 4NT rebid by the 2 opener is always the Blackwood convention

e)

Dealer: South

South

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

South

West

North

East

2
4NT (?)

Pass
 

2
 

Pass
 

4NT Blackwood

4NT is not Blackwood over partner's 3NT bid without a jump

f)

Dealer: South

South

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

South

West

North

East

1
3
4NT (?)

Pass
Pass
 

1
3NT
 

Pass
Pass
 

4NT natural

4NT is always the Blackwood convention when following a jump in notrump

g)

Dealer: South

South

A Q J 10 7
K J 10
A 10 8
K J

South

West

North

East

1
4NT (?)

Pass
 

3NT
 

Pass
 

4NT Blackwood

4NT is the Blackwood convention when made by responder after a jump shift

h)

Dealer: South

North

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

South

West

North

East

1
2NT

Pass
Pass

2
4NT (?)

 
 

4NT Blackwood

4NT is always the Blackwood convention when following immediately a weak opening at the two, three or four level

i)

Dealer: South

South

A Q J 10 7
K J 10
A 10 8 6
J

South

West

North

East

4

Pass

4NT (?)

 

4NT Blackwood

4NT is always the Blackwood convention when following immediately a weak opening at the two, three or four level

j)

Dealer: South

North

7
7 5
A Q J 8 6
A K Q 7 2

South

West

North

East

1

4

4NT (?)

 

4NT natural

4NT is not the Blackwood convention over an opponent's overcall at the four level

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