Boris Spassky Boris Spassky Boris Vasilievich Spassky (; born January 30, 1937) is a Russian chess grandmaster. He was the tenth World Chess Champion, holding the title from 1969 to 1972. Spassky played three world championship matches: he lost to Tigran Petrosian in 1966; defeated Petrosian in 1969 to become world champion; then lost to Bobby Fischer in a famous match in 1972. Spassky won the Soviet Chess Championship twice outright (1961, 1973), and twice lost in playoffs (1956, 1963), after tying for first place during the event proper. He was a World Chess Championship candidate on seven occasions (1956, 1965, 1968,
World Chess Championship 1972 as well as the possibility of an unlimited match. In response, Fischer refused to defend his title. Anatoly Karpov, who had fought his way through the 1975 candidates tournament, was declared World Champion by forfeit. Seventeen years later, Fischer entered negotiations with sponsors willing to fund a match under his proposed format, settling on a bid from Yugoslav millionaire Jezdimir Vasiljević. Fischer insisted that since he had not been defeated in a match, he was still the true World Champion. He further claimed that all the games in the FIDE-sanctioned World Championship matches, involving Karpov and his challengers Korchnoi and