This exciting deal is from the Green Point pairs held face to face at Bramhall last Sunday.
The South hand is difficult to bid especially when playing two over one game forcing. South responded one no trump which was really his only option without overbidding wildly. North made a slightly eccentric raise to two notrump, ostensibly showing 18-19 balanced. South tried three notrump hoping to be able to run one of his minor suits, otherwise he was likely to go a lot off. John Holland suggests four notrump by South after two notrump, an unusual form of the unusual notrump.
West led a heart to the nine and ten, East then switched to a low diamond to the ten and king. South was hopeful of a second diamond which would make nine tricks easy but West now tried the club jack. South won with the ace and cashed the major suit winners on table, before taking the club finesse. If West had found the club switch from QJ doubleton South would have gone about five off but all was well. The defence went wrong on the run of the clubs and South emerged with ten tricks. At the point where he cashed the major suit winners on table a better line is to take the club finesse and then play the queen of diamonds.
Three other tables played five clubs with varying degrees of success, presumably after an auction like 1S 2D, 3S 4C, 4S 5C. A couple played in six clubs, one pair made this (an interesting double dummy exercise for you) and two in four spades, one making and two in spade partials one other pair played three notrump also making ten tricks.