Since your mental state can have such dramatic effects on your body, obviously your physical condition can affect your mental well-being. It follows that regular physical conditioning should be part of your overall chess training.

I remember being with a girlfriend who asked me to look over some chess openings with her. I instantly fell asleep. I found that I could always take a nap in any situation by just looking at some opening variation - my eyes would shut right away.

According to such great attacking players as Bronstein and Tal, most combinations are inspired by the player's memories of earlier games.

When you defend, try not to worry or become upset. Keep your cool and trust your position - it's all you've got.

Under no circumstances should you play fast if you have a winning position. Forget the clock, use all your time and make good moves.

There is no doubt that Bronstein's shrewd understanding of chess psychology was crucial to his success. Without it, his impetuous style and technical flaws might have relegated him to a minor career.

I always urge players to study composed problems and endgames.