I'm putting club Ace in the East hand; therefore the spade finesse has to work. I'll take opening lead with diamond King in Hand, play to the heart Ace, and low heart back to the King, hoping for no worse than a 3-1 split. Now a spade to the Queen, holding my breath, and if it holds, play the spade Ace. If there was singleton spade, hope that the singleton holder also had only two hearts. Ruff a spade in hand, back to heart Queen, ruff another spade if necessary, then back to diamond Ace to cash your good spades.