Note when dummy has strong trumps

This week we have been looking at various uses for the trump suit. Here is one more, a technique that arises rarely, but is fun to execute when it does.

South is in four spades. West leads the heart two, a known singleton. How should declarer plan the play?

North's two-heart cue-bid raise showed at least three-card spade support and a maximum initial pass. South, who expected the heart finesse to work and liked having a singleton, jumped to four spades.