Partner
leads the 4ªagainst 3nt and declarer
plays dummy's J, you cover with the Q and declarer holds off.
You continue with the 10 and declarer ducks again. You can
assume if pard had Kxxxx in spades and an A he would have
overtaken your 10 and cleared the suit therefore declarer has
9 tricks with 5 diamonds and A,K,A,A. So lets get our thinking
cap out,we have 2 tricks in the bag a diamond to come so we
need 2 heart tricks, Ithink
we've got it. Place the 9on the table so declarer
cant duck it playing partner for K10x and you are richly
rewarded.