This interesting deal was from the last match of the Tollemache final in February.
When North opened three spades Alan Mould overcalled three notrump. South now raised the pre-empt to four spades.
I doubled to show some values, apparently four notrump is the correct bid here. Alan now leapt to six clubs, South believed him and sacrificed in six spades.
I doubled again as I had no first round spade control, though Alan thinks pass is correct to show suitability for six notrump.
Anyway six spades went three off losing a spade, two hearts and a diamond for a score of 500.
How would East West slams have fared? Well six clubs is off on a spade lead to North and a diamond returned. East cannot cash the ace of diamonds without it getting ruffed. Even drawing trumps ending in dummy doesn't help as you can only play two rounds and they split 3-0.
Six notrump is easy on a spade lead, but what about on the jack of hearts lead? This seems to set up a heart trick for the defence as well as the ace of spades and declarer has only eleven obvious tricks. It can be made though, try it and then scroll down for the solution.
To make six notrump on the jack of hearts lead cover the jack with the queen, king and ace.
Then run all the clubs, South is caught in a squeeze without the count.
The end position is as below with South to discard.
If South discards a diamond then declarer has three diamond tricks, whereas if he discards a heart, declarer can take the diamond finesse and then exit with the nine of hearts to South's jack and he has to lead a diamond for another finesse.