Show Up Squeeze

In the last 16 of the Crockfords Plate we didn't make too many errors and had a comfortable win, though this grand was maybe a bit fortunate.

I must admit to a senior moment when I bid 7NT - for some reason I thought that we had 12 top tricks, so that the grand would be laydown at best or on a finesse at worst. Luckily Ann was kind enough to provide the queen of diamonds so that I did indeed have 12 top tricks and two chances for a thirteenth

West led a spade and I could see two lines of play - the heart finesse or a squeeze in the red suits. I ran all the clubs, discarding two hearts and two spades from dummy, while West threw two spades and a diamond. The diamond discard looks harmless but actually led to a position where I could not go wrong. On the last club East was forced to come down to two hearts and four diamonds. I cashed the ace of hearts and three top diamonds which revealed that it was East who still held the jack. Now when I led a heart towards my K J at trick 12 and East followed with a low card, I knew his last card was the jack of diamonds so it was clear to go up with the king and drop West's queen - a Show-Up Squeeze.

All this didn't really matter as I was always intending to play for the squeeze rather than the finesse. The  squeeze (which works when the same hand has both long diamonds and long hearts, or when the queen of hearts is singleton or doubleton) works about 60% of the time, compared with about 53% for cashing the ace of hearts and taking a finesse. When you include the chance of the diamonds playing for four tricks - about 10% - the grand has a 64% chance of making, well within the required odds at IMP scoring. So perhaps that 7NT bid was not so crazy after all.