Career
Unlike many of his grandmaster colleagues, his development in chess came slowly, and he did not receive even the Soviet master title until he was an adult. His progress then accelerated rapidly, however, and by the late 1960s he was one of the world's strongest players, as was recognized by his participation in the famous "USSR vs. Rest of the World" match of 1970. In this match he occupied fourth board, losing one game to Vlastimil Hort and drawing his other three. Polugaevsky won at Mar del Plata in 1962 and 1971. He won or tied in the USSR Chess Championship three times. He played regularly in qualifying events to select a challenger for the world championship, qualifying for Candidates matches on four occasions. Polugaevsky was a noted theorist whose work on a number of openings has stood the test of time. In addition to his over-the-board and theoretical successes, Polugaevsky was a highly respected chess author.