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 on for 15 minutes, drawing a crowd of onlookers, he eventually lost to the chess master. One of the spectators was Brooklyn Chess Club President, Carmine Nigro, an American chess expert of near master strength and an instructor. Nigro was so impressed with Fischer's play that he introduced him to the club and began teaching him. Fischer noted of his time with Nigro: "Mr. Nigro was possibly not the best player in the world, but he was a very good teacher. Meeting him was probably a decisive factor in my going ahead with chess." Nigro hosted Fischer's first chess tournament