Efim Geller

Efim Petrovich Geller (Russian: Ефим Петрович Геллер, Ukrainian: Юхим Петрович Геллер; 8 March 1925 – 17 November 1998) was a Soviet chess player and world-class grandmaster at his peak. He won the Soviet Championship twice (in 1955 and 1979) and was a Candidate for the World Championship on six occasions (1953, 1956, 1962, 1965, 1968, and 1971). He won four Ukrainian SSR Championship titles (in 1950, 1957, 1958, and 1959) and shared first in the 1991 World Seniors' Championship, winning the title outright in 1992. His wife Oksana was a ballet dancer while his son Alexander was also a chess master. Geller was coach to World Champions Boris Spassky and Anatoly Karpov. He was also an author.