CONTRACT: 4 South
OPENING LEAD: 4 (4th best under an honor)
Four possible losers: one club and three diamonds.
Line of play: establish the trump suit; discard a loser in dummy on declarer's fourth spade.
Trick 1 W: 4, 6, K, A
Trick 2 S: 5, 2, J, 3
Trick 3 N: 6, 4, Q, A
West hesitates to cash his club queen. Declarer could ruff, pull trumps and discard a losing diamond on his good spades.
West realizes there is no rush in cashing his club queen because dummy does not have a long suit which would allow declarer to discard a losing club if he holds one.
He rather chooses to return the diamond nine, showing a doubleton and expecting a ruff if partner has ace-queen. If declarer holds only two diamonds, then he should also have a doubleton in clubs and the queen will always cash later on.
Trick 4 W: 9, 3, Q, 7
Trick 5 E: A, 8, 2, 10
Trick 6 E: 4, J, 2, K
Declarer is limited to nine tricks, four spades, four trumps and one club.
The contract is set one trick.
The defense takes four tricks: two trumps (a ruff) and two diamonds.