Rey Enigma misses a BIG WIN vs Anatoly Karpov, Spain's Got Talent 7

Ranking chess players according to the quality of their moves

Kasparov's Biggest Rating Gap Plotted : r/chess

Karpov-Kasparov: Grudge Match in Valencia

Anatoly Yevgenyevich Karpov, World Chess Champion, Grandmaster

Estimated Rating - bug or by design? - Chess Forums

The Longest Game

First and Only Woman to Reach a Rating of 2700, Karpov vs Polgar

How did Anatoly Karpov lose so many rating points despite not playing many competitive games over the past decade? - Quora

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