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
Chess Bergman's "The Seventh Seal" and Satyajit Ray's "The Chess Players". Chess is also present in contemporary popular culture. For example, the characters in "Star Trek" play a futuristic version of the game called "Tri-Dimensional Chess". "Wizard's Chess" is featured in J.K. Rowling's "Harry Potter" plays. The hero of "Searching for Bobby Fischer" struggles against adopting the aggressive and misanthropic views of a world chess champion. Chess is used as the core theme in the musical "Chess" by Tim Rice, Björn Ulvaeus, and Benny Andersson. The thriller film "Knight Moves" is about a chess grandmaster who is accused of being a