CONTRACT: 6 South
OPENING LEAD: 10 (top of a doubleton)
Possible loser: the heart ace.
Line of play: routine play; pull trumps and establish the heart winners.
Trick 1 W: 10, 3, 4, K
Holding a worthless hand, West chooses to lead a trump, refusing to give declarer a free finesse in one of the side suits.
South wins his ace, pulls two rounds of trumps and dislodges the heart ace for twelve winners.
Declarer makes his contract. The defense take the heart ace.