Boris Vasilievich Spassky (also Spasskij) (born January 30, 1937) is a Russian-French chess grandmaster. He was the tenth World Chess Champion, holding the title from 1969 to 1972. Spassky won the Soviet Championship twice outright (1961, 1973), and twice more lost in playoffs (1956, 1963), after tieing for the top during the event proper. He was a World Championship Candidate on seven occasions (1956, 1965, 1968, 1974, 1977, 1980, and 1985). Wikipedia
The definitive Wikipedia entry for Boris Spassky. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Boris_Spassky