One of the best chess players of all time, but also a complete loony.
Bobby Fischer, who has died at the age of 64, was a talented chess grandmaster once hailed as an American hero for breaking a Soviet dominance of the game that had lasted nearly 30 years.
His surprise defeat of Soviet champion Boris Spassky in 1972 in the "chess match of the century" established him at the top of the game, after a run of 20 consecutive tournament victories that is still hailed as the longest winning streak in world chess.
But instead of capitalising on his win, he withdrew from competition and rarely played at international level afterwards.
In recent years, he had been better known for his paranoia, obsessive behaviour and outrageous public statements, which all but overshadowed his undoubted brilliance.