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Detail specifications 21BJ - Level 4 ★

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After an opening of e 1 ♣ or 1 ♦, the responder jumps in the other minor
This convention is now widely used and Kit recommends you should use it.
After, a minor opening and the opps have passed, with :
  • 5 or 6 cards in the opening minor
  • 8 to 11HCPs
  • No 4 cards major
  • bid a jump in the other minor
This support is more constructive than a preempt in the opening minor.
Careful ! to use it, you must have passed first.
SWNE
1
Pass
3
9
7
6
5
4
9
6
A
K
J
10
9
4
Problem E20907 3 ♣ This hand is worth more than a simple preempt at 3 ♦
 
SWNE
1
Pass
3
9
6
7
4
J
7
5
A
J
10
9
5
4
Problem E20906 Small support bid with 5-7 HCPs
 
 
Examples
SWNE
1
Pass
1
5
7
4
K
10
9
8
3
A
K
J
10
5
Problem E20909 1♦ : transit via 1 ♦ before shwing support in ♣ . This promising hand is too strong for a direct support
 
SWNE
1
Pass
1
K
Q
5
10
8
6
4
6
K
Q
10
7
5
Problem E20905 1 ♥. Even with a headless 4 cards major, you must bid it first !
 
 
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