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 Boom". This match attracted more worldwide interest than any chess championship before or since. Fischer was scheduled to defend his title in 1975 against Anatoly Karpov, who emerged as his challenger. Fischer, who had played no competitive games since his World Championship match with Spassky, laid out a proposal for the match in September 1973, in consultation with FIDE official Fred Cramer. He made three principal (non-negotiable) demands: A FIDE Congress was held in 1974 during the Nice Olympiad. The delegates voted in favor of Fischer's 10-win proposal, but rejected his other two proposals, and limited the number of games