Karpov: Move by Move by Sam Collins (2015-09-07): : Books

rating - Why have engines not increased top rated chess players' Elo? - Chess Stack Exchange

FIDE - International Chess Federation - Did you know that only 7 players have been rated #1 in the world (standard chess) since the FIDE rating list was first published in July

FIDE Chess Rating Inflation

What was Bobby Fischer's rating per age from his first chess game to the time he retired? - Quora

Anatoly Karpov - Wikipedia

World Chess Championship 1978 - Wikipedia

Karpov - Korchnoi World Championship Match (1978) chess event

Karpov, Anatoly

Judit Polgar vs Anatoly Karpov 2003 Two Bishops Sac in Top-Rated Chess

Excalibur Model 310E Karpov 2294 (1997) Electronic Chess Computer