Chess right of a deposed champion to a rematch, and the next champion, Armenian Tigran Petrosian, a player renowned for his defensive and positional skills, held the title for two cycles, 1963–1969. His successor, Boris Spassky from Russia (champion 1969–1972), won games in both positional and sharp tactical style. The next championship, the so-called Match of the Century, saw the first non-Soviet challenger since World War II, American Bobby Fischer, who defeated his Candidates opponents by unheard-of margins and clearly won the world championship match. In 1975, however, Fischer refused to defend his title against Soviet Anatoly Karpov when FIDE did
World Chess Championship 1972 was covered throughout the world. Fischer became a worldwide celebrity, described as the Einstein of chess. His hotel received dozens of calls each day from women attracted to him, and Fischer enjoyed reading the numerous letters and telegrams that arrived with compliments or criticisms. Excitement grew as the match was postponed and people questioned whether Fischer would appear. Previously, he had come to the airport and, surrounded by reporters, left. The combination of "Will he play?" and "American versus Russian" created excitement throughout the world. The opening was a placid Nimzo-Indian Defense, and after 17...Ba4 the game was even (Filip).