Exclusion Blackwood

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.

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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

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ExerciseE9326 Response to a 5 ♦ exclusion Blackwood : 3 levels above... 2 keys.

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Exercise E9327 5 ♠ Trump has been agreed previously. In this case, 1 key only (K ♠) as Ace ♦ must be excluded.

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Detail specifications 61JX - Level 3 ★

Exclusion Blackwood

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