NORTH  K972  764  432  532  T8653  Q98  AKQ  KT    QJ4  AJ52  6  AJ987    A  KT3  JT9875  Q64

Dealer: South    Vul: Both   MP Scoring West 1 2N1 4 North Pass Pass Pass East 2 32 Pass South Pass Pass Pass Pass

At trick one, North led the 7.
Low from dummy posed a problem for South.
North might have held 3 hearts including Q97 or Q87, in which case playng the T would have been right.
West won the Q and led to dummy East's Q, won by South.
A diamond was returned.
Dummy's Q was allowed to win and declarer rotated to South saw this:

	NORTH  4  AJ5    AJ987
	T86  98  KQ  KT

Two dummy hearts could be discarded on declarer's diamonds and declarer's last heart ruffed, but with what entries?
Three rounds of clubs were played, the last ruffed in hand and declarer discarded dummy's losing heart on established dummy clubs.