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Detail specifications 61JX - Level 3

Exclusion Blackwood

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Exclusion Blackwood
This convention is used by a player holding a void and willing to know how many Aces are in the line apart from the void.

Exclusive Blackwood is made by a surprising jump in the void. This is always surprising for the partner, and this one can't get confused with a Splinter, a control or any other bid..
Now the partner is going to respond, naming his Aces, or his keys if a suit has been previously agreed as trump.
For instance, after a raise bid, a jump in a suit other than the trump one, and going above game level is an exclusive Blackwood.
A
K
3
2
6
4
4
3
J
10
7
6
5
SWNE
1
Pass
3
Pass
5
Q
J
8
7
6
5
4
A
K
Q
10
K
Q
Exercise E9325 After the raise,5 is quite surprising !It's an exclusive Blackwood. The partner shall announce his keys.... apart from .
 
 
Responding to an exclusive Blackwood
The partner shall announce his keys, or his Aces, but WITHOUT COUNTING . You can use any system afterwards : 30-41, or 0 1 2 3.
  • suit right above : 3 or 0
  • 2 levels above = 1 or 4
  • 3 levels above = 2

The second system might be easier... you and your partner choose.
  • suit right above = 0
  • 2 levels above = 1
  • 3 levels above = 2
SWNE
1
Pass
3
Pass
5
Pass
5NT
A
K
7
6
8
6
7
5
J
10
7
6
5
ExerciseE9326 Response to a 5 exclusion Blackwood : 3 levels above... 2 keys.
 
SWNE
1
Pass
3
Pass
5
Pass
5
K
10
7
6
8
6
7
5
A
J
10
7
6
Exercise E9327 5 Trump has been agreed previously. In this case, 1 key only (K ) as Ace must be excluded.