Born 1931 in St. Petersburg/Russia; Grandmaster 1956; peak Elo rating: 2695; Vice World Champion 1978-1984; World Senior Chess Champion 2006-2007; Chess Olympiad, Gold Medal: 1960, 1966, 1968, 1970, 1972, 1974; notable tournament victories: USSR Chess Champion 1960, 1962, 1964, 1970, Yerevan 1965, Tilburg 1985. Korchnoi is by far the oldest active grandmaster in world chess. In 2007, at the age of 75, Korchnoi was ranked among the 100 best chess players in the world.