Anatoly Karpov

Russian chess master Anatoly Yevgenyevich Karpov ranked from 1975 as world champion to 1985.

Garry Kasparov defeated this official grand doctor. From 1986, he played three matches against Kasparov for the title to 1990. After Kasparove broke away from Fédération Internationale des Échecs in 1993, he then held its title once again. He held the title but in protest against new rules resigned in 1999. Many consider Karpov of the greatest players of all time for his decades-long standing among the elite.

https://en.wikipedia.org/wiki/Anatoly...