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
World Chess Hall of Fame D.C.; and Miami, Florida, it moved to St. Louis on September 9, 2011. The brainchild of Steven Doyle, USCF president from 1984 to 1987, the World Chess Hall of Fame was created in 1986 as the U.S. Chess Hall of Fame. Opened in 1988 in the basement of the Federation's then-headquarters in New Windsor, New York, the small museum contained a modest collection, including a book of chess openings signed by Bobby Fischer; a silver set awarded to Paul Morphy, American chess player and unofficial World Champion; and cardboard plaques honoring past grandmasters. In 1992, the U.S. Chess Trust purchased