Karpov v Miles, 1983

January 1989 Rating List : r/chess

2700chess on X: So (2822.1) wins the #TataSteelChess with 9/13

World Chess Champions (According to Rating) - Remote Chess Academy

Chessmetrics Ratings: December 27, 1999

World Chess Championship 1981 - Wikipedia

The Longest Game

Complete Games of World Champion Karpov

The games of Anatoly Karpov

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

Intense Study of the Masters - 5 DVDs