Anatoly Karpov (1951-)

Anatoly Karpov is a Russian chess grandmaster and former World Champion. He was the official world champion from 1975 to 1985 until Garry Kasparov beat him in a match. He became a champion again in 1993 after Kasparov broke away from FIDE in 1993 and held the title until 1999 when FIDE renewed their world championship rules. Karpov's peak Elo rating was as high as 2780 which would be extremely competitive even today.