This book convinced me that I was too old to continue playing the Najdorf variation. It's a sobering moment that many chess-players have no doubt had to confront, if they were the type that played ultra-sharp variations when they were young. I am not, however, sure what the central problem is. Perha...
John Nunn is a very clever guy. He went to Oxford at age 15, and received a PhD in Algebraic Topology when he was 20. He became a chess Grandmaster the same year, and after a while gave up mathematics to turn pro. For a while, he was one of the world's top ten players. Then he started writing chess ...