In our game it’s often hard to avoid playing by instinct. I recently made an instinctual misplay at trick one when West led the seven of hearts on this hand:
My instinct was “oh, goodie – a free finesse!” I played low from dummy. Only as I was about to lead to trick two did I contemplate how to play trumps should they break 4-1. It was too late. I needed to win trick one in dummy and cash the queen of spades. Then I can come to hand in hearts at trick two and draw trumps.
BTW, assuming I had played correctly at trick one, how are you going to play the minor suits? You know where the heart queen is, right? Yes, right!