Intermediate and newcomer players - sharpen your game with this series of tutorials. You can browse the index by topic, or read them in order. Learn even more at ACBL's Learn page.
This is a tale of two errors, see if you can spot them.
Against 5♦ West led the ♠K, won by Dummyís Ace and trumps were drawn. Declarer could count 10 top tricks, but where was the 11th? Not the ♥K as West needed the ♥A to justify his Takeout Double. That meant that a 4th Club trick was required. Could Clubs have been 3-3?