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Detail specifications 52JX - Level 3 ★

Exclusive Blackwood

Exclusive 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.
Ace Spades
King Spades
3 Spades
2 Spades
6 Hearts
4 Hearts
4 Clubs
3 Clubs
Jack Diamonds
10 Diamonds
7 Diamonds
6 Diamonds
5 Diamonds
SWNE
1 Pique Pass 3 Pique Pass
5 Carreau
Queen Spades
Jack Spades
8 Spades
7 Spades
6 Spades
5 Spades
4 Spades
Ace Hearts
King Hearts
Queen Hearts
10 Hearts
King Clubs
Queen Clubs
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 Pique Pass
3 Pique Pass 5 Carreau Pass
5 SA
Ace Spades
King Spades
7 Spades
6 Spades
8 Hearts
6 Hearts
7 Clubs
5 Clubs
Jack Diamonds
10 Diamonds
7 Diamonds
6 Diamonds
5 Diamonds
ExerciseE9326 Response to a 5 ♦ exclusive Blackwood : 3 levels above... 2 keys.
 
SWNE
1 Pique Pass
3 Pique Pass 5 Carreau Pass
5 Pique
King Spades
10 Spades
7 Spades
6 Spades
8 Hearts
6 Hearts
7 Clubs
5 Clubs
Ace Diamonds
Jack Diamonds
10 Diamonds
7 Diamonds
6 Diamonds
Exercise E9327 5 ♠ Trump has been agreed previously. In this case, 1 key only (K ♠) as Ace ♦ must be excluded.