Argentinian Falsecard
West led his singleton Queen of Hearts v Six Diamonds and declarer won the Ace. The basic plan was clear: play the Ace-King of Trumps, then, assuming both follow but no Queen has appeared, begin Clubs. All of dummy’s Hearts can be discarded on the Ace-King-Knave of Clubs, and, assuming a four-three Club split (making the long Club good), the Heart loser can be ruffed with dummy’s remaining