Classic Karpov - Chess Lecture - Volume 161

At what age are chess players at their peak?

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

The Sonas Rating Formula – Better than Elo?

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

E-DVD Karpov Endgames - Chess Lecture - Volume 96

Chessmetrics Summary for 1840-2005

Why has Karpov's chess rating gotten to 2600? - Quora

Training Program For Chess Players.1,2,3 category. Golenishchev.Editor: A.Karpov

One clear win and already tired of winning? - An interview with Anatoly Karpov