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Detail specifications 52JD - Level 1 ★
The Keycard Blackwood (30-41)
The recommended Blackwood: five keycards 30-41
In order to use the Blackwood it must clearly be shown that a fit has been found. Use this Blackwood not only to find the number of aces the side possesses, but also to discover the strength of the trumps.Instead of giving just the number of aces, the Partner gives the number of key cards which are the aces and the king of trumps.
In order to use the Blackwood it must clearly be shown that a fit has been found. Use this Blackwood not only to find the number of aces the side possesses, but also to discover the strength of the trumps.Instead of giving just the number of aces, the Partner gives the number of key cards which are the aces and the king of trumps.
- 5 clubs = 3 or 0 key cards
- 5 diamonds = 4 or 1 key cards
- 5 hearts = 2 key cards without the queen of trumps
- 5 spades = 2 key cards including the queen of tramps
- 5NT = 2 key cards and a void
- 6 in a suit = 3 or 1 key cards and a void in that suit
Q
J
8
4
A
A
Q
9
4
K
8
6
2
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
2 |
Pass |
3 |
Pass |
3 |
Pass |
4 |
Pass |
4NT |
Pass |
5NT |
Pass |
7 |
Pass |
Pass |
Pass |
A
K
10
9
3
K
Q
10
7
6
K
8
3
Le Blackwood : example
A
K
Q
J
7
4
K
7
K
7
6
4
2
| S | W | N | E |
|---|---|---|---|
1 |
Pass |
1 |
Pass |
2 |
3 |
4 |
Pass |
4 |
Pass |
4NT |
Pass |
6 |
Pass |
6 |
Pass |
Pass |
Pass |
7
5
2
A
K
J
6
Q
J
10
9
5
3
Problem E9466 6 clubs = 1 key card and a club void.
FR version
5NT = 2 key cards and a void which obviously in diamonds in this sequence.