Billy Rosen, whom I would have to select as the star performer of the Chicago team, felt that his hand was too weak to stand for the double of three no trump, although that contract could have been defeated with a club opening or a club shift. But Rosen did far better by bringing home his doubled four-heart contract. The play was a triumph of counting out the opponents' hands.
Hamman opened the king of diamonds. Dummy's ace won, and Rosen played ace and another heart. This proved indiscreet when West was able to win the heart trick and pull a third round of trumps, leaving one too few trumps in dummy to ruff both of South's losing diamonds.
West continued by leading the two of spades. The audience held its collective breath while Rosen considered letting this lead ride to his jack. Eventually he played dummy's ace and led a club to his king. West took the ace and continued spades. Dummy won, and South discarded a diamond. South came to his hand with a spade ruff and achieved a perfect count of East's hand. West could hold only two diamonds, else he would have opened a low one instead of the king. East had followed to four spades and one heart. Seven diamonds accounted for the rest of his cards with the exception of the club he had already played.
Rosen, therefore, led the 7 of clubs, and when West did not cover, Rosen let it ride. This deep finesse brought home the contract for a score of 790 and reduced the Los Angeles gain to 7 IMPS. Chicago went on to win 171 to 161.