CONTRACT: 3NT South
OPENING LEAD: 4 (4th best under an honor)
Five sure winners: three diamonds (four if the queen lays with East) and two clubs.
Line of play: establish winners in spades rather than hearts.
Trick 1 W: 4, 3, 2, 9
Trick 2 S: 6, 2, 7, K
A diamond return toward ace-ten in dummy is not appropriate. Neither is a heart shift.
Trick 3 E: 2, K, 3, 5
Trick 4 S: Q, 3, 9, 5
Trick 5 S: 10, A, J, 4
Trick 6 W: 6, 8, 10, A
South can now count seven sure tricks: two spades, three diamonds and two clubs.
He can now cash his spade winner and safely lead a low heart toward dummy's king to establish his eighth trick.
East wins the heart ace and cashes his two club winners. But he must now return a diamond or a heart, giving declarer the rest of the tricks.
Declarer makes his contract.
The defense takes three tricks: two spades, one heart and two clubs.