Bobby Fischer games, the only perfect score in the history of the tournament. His book "My 60 Memorable Games", published in 1969, is regarded as a classic work of chess literature. He won the 1970 Interzonal Tournament by a record 3½-point margin, and won 20 consecutive games, including two unprecedented 6–0 sweeps, in the Candidates Matches. In July 1971, he became the first official FIDE number-one-rated player. Fischer won the World Chess Championship in 1972, defeating Boris Spassky of the USSR, in a match held in Reykjavík, Iceland. Publicized as a Cold War confrontation between the US and USSR, it attracted more
Bobby Fischer play Spassky (then tied for 96th–102nd on the FIDE rating list) in a "Revenge Match of the 20th century" in 1992. This match took place in Sveti Stefan and Belgrade, Yugoslavia, in spite of a United Nations embargo that included sanctions on commercial activities. Fischer demanded that the organizers bill the match as "The World Chess Championship", although Garry Kasparov was the recognized FIDE World Champion. Fischer insisted he was still the true World Champion, and that for all the games in the FIDE-sanctioned World Championship matches, involving Karpov, Korchnoi, and Kasparov, the outcomes had been prearranged. The purse for