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
Bobby Fischer reply—affirmative—came too late for him to go." Regina did not have the money to pay the airfare, but in the following year Fischer was invited onto the game show "I've Got a Secret", where, thanks to Regina's efforts, the producers of the show arranged two round-trip tickets to Russia. Once in Russia, Fischer was invited by the Soviet Union to Moscow, where International Master Lev Abramov would serve as a guide to Bobby and his sister, Joan. Upon arrival, Fischer immediately demanded that he be taken to the Moscow Central Chess Club, where he played speed chess with "two young