Solution:

• Anatoly Yevgenyevich Karpov is a Russian chess grandmaster and former World Chess Champion. He was the undisputed World Chess Champion from 1975 to 1985 when he was defeated by Garry Kasparov.

• Karpov played five matches against Kasparov for the title from 1984 to 1990 without ever defeating him in a match, later becoming FIDE World Champion once again after Kasparov broke away from FIDE in 1993. He held the title until 1999, when he resigned his title in protest against FIDE’s new world championship rules.