Chess is like body-building. If you train every day, you stay in top shape. It is the same with your brain - chess is a matter of daily training.

In games against humans, you often win because the opponent blunders a piece, and you can often survive when you do it yourself. Against the computer, you make only one mistake - the last one.

Every month I look through some ten thousand games, so not as to miss any new ideas and trends.

I don't like to show my emotions at the board, not because they might give something away to an opponent, but because that's my style: I like to keep it to myself.

In the current FIDE World Championship, on the knock-out system, weaker players have good chances. Those, who in a long match would practically have no chance, here may creep through.

Part of my preparation for the World Champion match against Kasparov was to be ready for his off-board tactics. I did not to react to them at all. Once you start thinking about these things during the game, even analysing them, you're caught.

With the Berlin I was able to set up a fortress that he could come near but not breach.