Mild-looking little Samuel Reshevsky hunched over the chess board, prodded his temples, thoughtfully munched a finger. His opponent, Olaf Ulvestad, paced the floor between moves like an expectant ...

Since 1909 the U. S. chess championship has been a first-class monopoly, resting exclusively with tight-lipped Frank James Marshall. In 27 years he has defended his title only once. The $5,000 purse ...