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 Champion. His dramatic march toward the title made him a household name and made chess front-page news for a time. He won the title in 1972, but forfeited it three years later. The 1969 US Championship was also a zonal qualifier, with the top three finishers advancing to the Interzonal. Fischer, however, had sat out the US Championship because of disagreements about the tournament's format and prize fund. Benko, one of the three qualifiers, agreed to give up his spot in the Interzonal in order to give Fischer another shot at the World Championship; Lombardy, who would have been "next