Cognitive Chess: Improving Visualization and Calculation SkillsWhen You Are Serious about Improving To improve and succeed, a chessplayer must be able calculate precisely and visualize prospective positions. This is easier said than done. While pondering the next move, a chessplayer frequently keeps "replaying" the same melody in his mind, thus falling into a kind of trance. This book by Russian grandmaster Konstantin Chernyshov is designed to improve your visualization and calculation skills. With 500 exercises