This book is endlessly entertaining and genuinely educational. Grandmaster and chess correspondent for The Times, Ray Keene, has produced a startling work in which readers may gauge their chess rating in the comfort of their own home. Keene's system is unique; the reader is awarded points not only for making the best move, but also for not making a mistake. The games included are also deliciously dramatic, with examples taken from Spassky, Tal and Alekhine and other great players. Of all the chess books out there, this is one of my upmost favourites.