At a club game, we got a bottom on this board (I'm sitting south). Neither partner nor I could figure out what I'd done wrong. It was only when recreating the hand that I realized what had happened.
Opening lead is the 9 of hearts. How do you play? (Click on South to hide every one else's cards. click "Next" to see how I played it).
Everyone else, when in dummy, must have immediately taken a spade finesse and made 4S+1 when the Queen of spades turned out to be with East. On the other hand, I came to hand with the Ace of spades and finessed East for the spade queen. I believe that this is a better line because it leaves the diamond king protected. If clubs break 3-3, I can discard a diamond on the fourth club.
Everyone who played the inferior line made an over trick. Or am I missing something?