Standard Falsecard

Today I would like to share a deal with a standard defense which quite a number of players may miss.

West Pass AP	North 1  2	East Pass Pass	South 1 NT1 3 NT	Board 1	A Q 10 9 4  K 7 5 3  A 5 3  6
				K 8  10 9  Q 8 7 4  K 10 8 7 5			J
1. Forcing				3 NT South	Q

You are West and lead 7 against 3NT, partner produces the J to force declarer's Q.

Declarer plays a spade to 10 and partner's J. He returns 4 and declarer followed 2 which you take the trick with 5.

What's your plan now?

Declarer has AQ, and about 6 hcp in heart and diamond.

Declarer has 4 spades, 1 diamond, 2 clubs.

If he has A, the contract is on ice cold. Therefore we assume he does not have it.

In that case, he might have KJ and Q to justify his bidding.

Hence, we knock out A with K to show a suit preference to heart.

Later on, when he runs the spades, we make our discard to encourage heart and discourage diamond.

Finally, a thinking declarer will make the losing diamond finesse instead of trying to find East with A.

OK, I was the thinking declarer.

The full deal:

Board 1	A Q 10 9 4  K 7 5 3  A 5 3  6
K 8  10 9  Q 8 7 4  K 10 8 7 5			J 3 2  A J 6 4 2  10 6  J 4 3
3 NT South	9 6 5  Q 8  K J 9 2  A Q 9 2