Partner led ♦Q and I had to think about raising with ♥A in order to play ♣K praying for partner to have exactly ♣Axx
Should I play before playing to first trick, after playing for first trick but without turning my card or perhaps neither, only allowed to think when dummy leads a heart after.
What actually hapened at the table was that I had my low diamond still face up when declarer put the trick down and asked for a heart from dummy wich dummy played.
I realiced if I was to duck this trick I had to do it inmediatelly so I turned my diamond face down and played my low heart as quick as I could. Declarer took a moment but finally played ♥J losing to partner's ♥Qx with a look like said something like "I knew it". I wasn't happy at all how te things developed and almost costed me the contract. Raising and playing ♣K would also work since partner has ♥Q10 and ♣Axx.