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My partner, who had only just been introduced to the joys of Roman Key Card Blackwood, was perhaps too eager to put the machinery into action on this deal.

As North, I opened One Heart (promising at least a five-card suit) and South lost no time in leaping to Four No-trumps. I dutifully responded Five Spades, showing two of the five "aces" and the queen of hearts, which seemed to be the agreed suit. Partner pushed on with Five No-trumps, asking for any additional feature; my next bid of Six Diamonds (showing the King) was music to South's ears, and he leapt to Seven No-trumps.

West led his singleton club against the grand slam. Then South considered his prospects. There were 13 tricks if the hearts broke 3-3; if they failed to behave, but there were four diamond tricks, it was also possible that one opponent guarded both major suits.

There was another possibility - declarer cashed a second top club, on which West had an easy spade discard, crossed to dummy with the king of diamonds, and cashed the ace of clubs, discarding a spade. West aged visibly - he was caught in a repeating squeeze. If he discarded from either major, and then parted with a diamond, three more rounds of the suit would squeeze him again. It would all be over.

"Very well bid and played!" was my comment - what else could I say?