You lead a club, the suit your partner has bid, and South wins with the ace.

His partner, Schuler, bid four hearts, but then faced problems in the play.

This caused his partner, Koslovsky, to bid six diamonds.

North raised clubs, knowing that her partner would bid spades if she held that suit.

The partner of the three no-trump bidder is expected to respond, and will usually bid four clubs.

His partner, he thought, might have bid a three-card club suit.

As West was looking at three kings, he knew that his partner had one ace and could bid six diamonds confidently.

To remove from a contract that partner has bid and which, often, has been doubled.

Moss, East, guessed wrong by leading the spade 10, since his partner had bid that suit.

West led the diamond queen, the suit his partner had bid, and East could not afford to overtake.