"This fascinating collection of 217 typical errors committed by the world's greatest players challenges you to test your skills by choosing between two moves: the right one, or the one actually played. You will be amazed at how even world champions make errors in critical situations and violate the basic principles of chess--and how you can avoid these mistakes in your game! From neglecting development, king safety, misjudging threats, and premature attacks, to impulsiveness, snatching pawns, and basic inattention, you get a complete course in being a winning player!"--Back cover.