Karpov-Kasparov: Grudge Match in Valencia

Accuracy, Ratings, and GOATs

Chessmetrics Ratings: December 27, 1999

Training program for juniors and 3rd category players (ELO rating up to 1400)

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

Karpov squares off against Rey Enigma on Spain's Got Talent. : r/chess

Anatoly Karpov: Road to the World Chess Championship

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

VINCENTYU's Blog • Rating Variants out of 10 stars besides Standard •

International Chess Federation on X: 1989: Sofia Polgar achieves rating performance of 2900+ In February 1989, Sofia Polgar achieved the highest performance rating ever recorded by a female when she scored 8.5

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