But now you have no entry in a threat suit to the dummy's ♥winner. The play has gone: ♠8,9,10,K South wins ♥x Q x x West wins ♣x x Q x East wins ♠x x x A North wins So far everybody wins. Now you can, for example, duck one more ♣ and cash the minor winners leading to a 4-card ending in which you endplay W to score your ♠7. But you don't score the ♥K, so you lose 2♥ and 3♣. After ♠A I duck another club. Any switch is taken, and another heart is led towards dummy (North). If West rises, he will be skvised, if he ducks, he will be stripskvised. (Third round of diamonds is taken in dummy, spades is communication back to hand.