Boris Spassky Boris Spassky Boris Vasilievich Spassky (; born January 30, 1937) is a Russian chess grandmaster. He was the tenth World Chess Champion, holding the title from 1969 to 1972. Spassky played three world championship matches: he lost to Tigran Petrosian in 1966; defeated Petrosian in 1969 to become world champion; then lost to Bobby Fischer in a famous match in 1972. Spassky won the Soviet Chess Championship twice outright (1961, 1973), and twice lost in playoffs (1956, 1963), after tying for first place during the event proper. He was a World Chess Championship candidate on seven occasions (1956, 1965, 1968,
Bobby Fischer Teaches Chess the work". According to Margulies, Fischer wanted a high quality work free of any errors, so Michael Valvo and Raymond Weinstein were brought in as proof readers. Chiefly due to its accessibility for beginners and Fischer's high public profile, the book sold an estimated one million copies. It is difficult to determine chess book sales with certainty, but this figure, based on the royalty payments made to co-author Stuart Margulies, makes it a candidate for best-selling chess book of all time. In October 1972, following Fischer's victory in the World Championship, the Bantam edition appeared on the New York Times