My sister played an excellent hand recently in the Waverley Congress. She opened 1NT on the South hand and North forced in spades. When South cue bid 4C, suggesting slam suitability, North used RKC: 5D show 3 keycards and 5NT showed all the keycards were held. 6C showed the KC and North bid the grand slam. South had no extras and, when West led the jack of clubs, declarer could only count twelve tricks and the only extra chance seems to be a 3-3 break in clubs which is less likely after the lead. Can you see how to play this hand?
Having only one loser prompts one to look for a squeeze but West can’t be squeezed in hearts and clubs because East can also guard the hearts. For the same reason, you can’t squeeze East in the reds. However, you can play both squeezes at the same time – a double squeeze. To make this work, you need to cash as many side suit winners as possible before the last trump so that both squeezes will work.
Draw trumps, cash the high clubs, the AH and the rest of the trumps. Before the last trump the position is
Now, on the last trump, East must keep two diamonds and so lets go a heart and South can discard a diamond since it has fulfilled its function as a threat against East. West can discard a diamond but when declarer now plays the ace of diamonds, West cannot guard both hearts and clubs and the contract makes.
Well played sis!