West leads the ♠3 (fourth best). You play low from dummy, East wins the ♠Q and returns the ♠8, West following with the ♠2. You continue with the ♦A K, but West shows out on the second diamond discarding a low heart. Now what?
The opening lead is the ♥7 (fourth best). Trumps are 2–1 and East is the one with the singleton. Plan the play.