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
High school dropouts in the United States however became successful. Walt Disney was an American business magnate, cartoonist, and filmmaker who dropped out of high school at the age of sixteen in hopes of joining the army. Bobby Fischer was an American chess prodigy, grandmaster, and the eleventh World Chess Champion who also dropped out of high school when he turned age sixteen and later explained "You don't learn anything in school". Glen L Roberts after a career of trying to expose government privacy abuses, left the United States, renounced his citizenship and became one of the few former Americans to voluntarily become stateless. He had dropped