Would you count three or four?

Stirling Moss, an Englishman who won 16 Formula One grand prix races, said, "I was taught that everything is attainable if you are prepared to give up, to sacrifice, to get it."

That can apply at the bridge table. If you sacrifice a trick at the right moment, you will make a contract that would otherwise have failed.

In this deal, which trick should South sacrifice and when? He is in four hearts, and West leads the spade queen.