Just One More Trick

Dlr:
South
Vul:
Both
North
♠ A Q 3
J 6 5
A 8 4 2
♣ J 5 2
South
♠ K 8 6 4 2
A K Q
K 10
♣ A K Q
West North East South
2♣
Pass 2 Pass 2NT
Pass 6NT All Pass

Against your normal 6NT contract, West leads the 10. How do you plan to get to 12 tricks?

Solution

With 11 top tricks and 12 if spades were 4-1, declarer looked at the possibility of a spade-diamond squeeze against the defender with long spades if they were 5-0. Declarer saw that, if he cashed even one spade and ducked a diamond, a defender with five spades could win it and return a spade, killing the squeeze.

In order to cater for to eventualities, declarer won the first trick with the A, then cashed the K and the top two clubs. Then he led a low spade to dummy’s queen. West’s discard turned a potential 12 tricks into 11. While taken aback by this development, declarer had prepared well. He continued with a low diamond from the table and, when East played the jack, declarer took this with the king, then ran the 10 to East’s queen. East exited with the ♠J. Declarer took this in dummy with the ace. He cashed the A and jettisoned the Q from hand. Declarer continued with the J and repeated the maneuver by discarding the ♣Q from hand, thereby bringing everyone down to three cards. East was reduced to the ♠10 9 and the 9. When the ♣ was played, East had no winning discard. If he had followed to the first diamond with a low one, declarer planned to cover it with the 10. That would prove to be a winning play when East had begun with three diamonds, including the 9 and at least one honor. Otherwise, the same squeeze would have operated.

The full deal:

Dlr:
South
Vul:
Both
North
♠ A Q 3
J 6 5
A 8 4 2
♣ J 5 2
West
♠ —
10 9 8 7 2
6 5 3
♣ 10 8 7 6 4
East
♠ J 10 9 7 5
4 3
Q J 9 7
♣ 9 3
South
♠ K 8 6 4 2
A K Q
K 10
♣ A K Q