Monday, May 15, 2006

Keeping partner's entries

Here's a simple hand where you might make a huge mistake:

Dealer:West
Vul:Both
Scoring:imps
9643
A72
94
KQJ3
AT52
T983
AK8
T9
KQ7
QJ6
J32
A642
J8
K54
QT765
875

West plays 3NT after showing 13-14HCP and 4-5 (either balanced with 4-5 or unbalanced with exactly 4).

Looks like a simple hand, doesn't it? I (North) started of with K-2-7-9 and Q-A-5-T (we use udca carding, so you showed 3 s. Now declarer plays Q from the table, which you don't cover (only good when partner has Ax) and it holds. You get the 7 from partner, which promisses only 1 card higher, and perhaps 1 lower as well. Now a small is played. Do you play the K?

I think you should because partner can only have 3s, and following is possible:
A7x - covering is mandatory. Partner with A7 would probably take A immediatly
T7x - declarer would've played another suit and run the 9 from 98
97x - declarer will first cash J and make the decision later weither or not to finesse the 9
87x - it doesn't matter, you'll always lose your trick

At the table, declarer played J at trick 4, which made it a lot easier. Now my partner didn't have any reason to duck again, and we defeated the contract since partner could still reach me with .

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