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Detail specifications 61ST - Level 2 ★

Sputnik double

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This is a conventional bid for Responder after a 1♦ or 1♥ overcall by Opp
With 5-6HCP and 4 or 5 cards in a major - you have to bid!
  • Resonder bids a suit one ranked higher than that of the overcalled suit it promises 5 cards in that suit.
  • With 4 cards in the suit ranked one level higher, Resonder bids X
  • Bidding the suit ranked above (ex. Spades after a diamond overcall) is ambiguous : Responder can have 4 or 5 cards.

SWNE
1
1
X
A
8
4
Q
J
9
6
9
6
3
2
7
4
Problem E5628 X After a 1♦ overcall, double promises exactly 4 ♥ cards.
 
SWNE
1
1
1
K
4
Q
10
7
4
2
9
6
3
2
7
4
Problem E5629 1♥ After a 1♦ overcall, bidding 1♥ promises exactly 5 cards (suit ranked one level higher than that of overcalled suit)
 
 
Negative Double Consequences
  • If Responder's bid suit isn't one just ranked above Overcaller's suit, Opener doesn't know if Responder has 4 or 5 cards.
  • After a diamond overcall, Responder's X promises 4 ♥ cards. Of course, you can't use the X to bid 4 ♠ cards.

SWNE
1
1
1
A
10
7
4
7
5
4
J
8
3
Q
9
5
Problem E5664 1♠ After a 1♦ bid, a 1♠ bid is ambiguous : Responder has 4 or 5 ♠ cards. (suit isn't ranked one level above overcalled suit)
 
SWNE
1
1
1
J
10
8
6
4
A
4
2
8
3
A
J
9
Problem E5662 1♠ After a 1♥ overcall, a 1♠ bid promises at least 5 cards (suit ranked just one level above overcalled suit)
 
 
Responder's follow on bids after X on a 1♦ overcall
On the following bidding round, Responder can describe his hand :
  • after doubling, if he bids the suit which is ranked one level higher than overcalled suit, he promises 4 cards in the other major (♠) and a hand with no Game ambition. He can't have 5♥ cards, otherwise he would have bid them in the 1st round!
  • If he bids the other major in the next round, it means he also has 4 ♠ cards and a hand to go for Game

SWNE
1
1
X
2
Pass
Pass
2
A
Q
9
4
A
K
8
6
7
6
5
8
3
Exercise 20223 2♠ shows 4 cards and 4 cards ♥ in a game forcing hand (12HCP or more ...)
 
A
Q
6
5
Q
8
6
A
J
3
7
6
5
SWNE
1
1
X
2
Pass
Pass
2
Pass
2
K
10
8
3
A
J
9
7
8
7
5
10
9
Problem E20224 after doubling the 1♦ overcall, 2♥ shows 4 ♥ cards and 4 ♠ cards in a hand with no Game ambition.
 
 
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