The play: ♦A, ♦ ruff, ♣K, ♣A. If all follow, cross to ♥A, draw the last trump and claim. If RHO holds ♣Jxxx ruff another ♦, ♥A, ♥Q, ♠A, 3 more ♥s from dummy, ditching ♠s. If RHO ruff in I overruff, draw the last trump and claim. If he don't I'll be in dummy with two cards left and capture RHOs trumps.