I had a slightly inferior endgame that probably should have been drawn, but Kortchnoi kept torturing me with little threats until finally, exhausted and exasperated, I made a losing mistake.

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.

Typically, in the last round of open tournaments the level of play is markedly lower, the number of blunders higher.

Sometimes players need to gain time on the clock by repeating the position, but most often its purpose is to wear down the opponent psychologically.

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

The business of the endgame is maneuvring to control critical squares, advancing or blockading passed pawns, preparing a breakthrough by the king, or exploiting the subtle superiority of one piece over another.