By rebidding ♠s, South guaranteed five cards. Yet because he would have opened 1♠ with five ♠s and five ♦s, his sequence showed six ♦s.

North felt justified in punting a Small Slam in the known nine card ♦ fit. His partner only had two cards between ♥s and ♣s - covered by his ♥A and ♣A.

West led ♥K against 6♦ and dummy’s ♥A won the first trick. Correctly seeking to establish ♠s before drawing trumps, declarer led ♠2 to ♠6, ♠Q and ♠10. The finesse having succeeded, he cashed ♠A and led ♠3. West discarded ♥2 and declarer trumped with ♦3. He trumped ♥4 and led ♠4, trumping with ♦7 when West discarded (♥Q). He cashed dummy’s ♦Q, cashed ♣A, trumped ♣2, drew the two remaining trumps and enjoyed his established ♠5. He had made all thirteen tricks!

ANDREW’S TIP: Opening the lower ranking suit then rebidding the higher ranking suit shows a five-six shape.