This deal from the Teltscher Trials last weekend helped John Holland (West) and Alan Mould (East) to win the event.
North opened three clubs on his five card suit and very weak hand. This is a tactic that may work, but should only be considered in first or third position non-vulnerable against vulnerable. Alan overcalled three notrump. A downside of an opening pre-empt on such a weak hand is that partner may expect more. Here South tried four clubs which John doubled for take out. Alan was happy to pass this for penalties which gained 1100 (it could have been 1400 with perfect defence).
Three notrump would have been an interesting contract on the queen of diamonds lead. Whether Alan would have made it we will never know. See if you can find a successful line and then scroll down; only one player in the trials played three notrump and he went down.
To make three notrump on a diamond lead, cross back to hand with a top club at trick two and lead a heart. South must duck or you have enough tricks with four hearts, two diamonds and three clubs. Then cash the club queen and turn your attention to spades. You will come to three spade, one heart, two diamond and three club tricks.