Opener 1/ 1NT |
Responder 1/ 2 |
Opener 1 1NT |
Responder 1 2 |
Responder's Rebid | Meaning |
---|---|
2 | 10 to a bad 12 points; artificial relay to 2D. May also be a weak signoff in diamonds (rare). |
2 | 12+ points, artificial and game-forcing (by an unpassed hand only). |
Opener 1/ 1NT |
Responder 1/ 2 |
Opener 1 1NT |
Responder 1 2 |
Opener 1 1NT |
Responder 1 2 |
Opener 1 1NT |
Responder 1 2 |
Opener 1X 1NT 2 |
Responder 1Y 2 ? |
Responder's Rebid | Meaning |
---|---|
Pass | Weak signoff with 5+ diamonds. |
New major | 4-card suit, invitational. This takes priority over rebidding a 5-card major. |
Rebid major | 5+ card suit, invitational. |
Jump rebid major | 6+ card suit, invitational. |
Opener | Responder | ||||
Q J 4 | K 10 5 3 | ||||
A 10 8 7 2 | 9 6 | ||||
10 9 | K Q 8 6 3 2 | ||||
A Q 3 | 5 | ||||
Opener 1 1NT 2 (2) |
Responder 1 2 (1) Pass (3) |
Opener | Responder | ||||
Q 9 4 | K 10 6 2 | ||||
10 9 | A K 8 5 3 | ||||
A 10 8 7 2 | 9 6 | ||||
A K 3 | 5 2 | ||||
Opener 1 1NT 2 (2) 2NT |
Responder 1 2 (1) 2 (3) Pass |
Opener | Responder | ||||
Q 10 4 | K J 8 | ||||
Q 9 2 | A K 10 5 3 | ||||
K 8 7 3 2 | 9 6 | ||||
A K | 10 5 2 | ||||
Opener 1 1NT 2 (2) 4 (4) |
Responder 1 2 (1) 2 (3) Pass |
Opener | Responder | ||||
Q J 6 | A 7 5 | ||||
10 9 | K Q J 6 3 2 | ||||
A 10 8 7 2 | 9 | ||||
A K 3 | 5 2 | ||||
Opener 1 1NT 2 (2) 4 (4) |
Responder 1 2 (1) 3 (3) Pass |
Opener 1X 1NT ? |
Responder 1Y 2 |
Opener | Responder | ||||
10 9 2 | A Q 8 5 4 | ||||
A J 9 7 | K Q 6 2 | ||||
A 10 7 2 | K 6 5 | ||||
A 5 | 9 | ||||
Opener 1 1NT 2 (2) Pass |
Responder 1 2 (1) 4 (3) |
Opener | Responder | ||||
Q 10 6 | A J 7 5 4 | ||||
A 10 7 | K J 6 | ||||
A 10 8 5 2 | Q 6 5 3 | ||||
A 5 | K 9 | ||||
Opener 1 1NT 2 (2) Pass |
Responder 1 2 (1) 4 (3) |
Opener | Responder | ||||
Q J 10 | A 7 5 | ||||
10 9 | K Q J 6 2 | ||||
A 10 8 7 2 | 9 5 | ||||
A Q 3 | K J 2 | ||||
Opener 1 1NT 2NT (2) Pass |
Responder 1 2 (1) 3NT |
Opener 1 1NT |
Responder 1 ? |
Hand A K 10 7 3 2 K J 9 5 9 8 5 4 |
Hand B A Q 7 6 2 K J 10 5 9 8 5 4 |
Hand C A Q 7 6 2 A K 10 5 9 8 5 4 |
Hand D A K J 6 2 A K J 10 5 9 K 4 |
The disadvantage of playing two-way Checkback is that opener’s forced2 rebid over2 doesn’t provide any distributional information. So far as locating a trump suit is concerned, it just wastes half a round of bidding.
Opener
1
1NT
2
Responder
1
2
2
Does responder show 11 points with a good five-card suit? A longer suit with fewer points? A balanced or unbalanced hand? Some players try to solve this problem by rebidding two of responder’s major over2 with three-card support rather than making an automatic2 bid.
This has been a rather long-winded discussion of the reasons I don’t like two-way Checkback. My own preference is for Eddie Kantar’s idea: always use2 as Checkback.
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