Chessmetrics Ratings: 17th Birthday

characteristic of 2000-2500 blitz and rapid - Chess Forums

WCC: Biographies

Chessmetrics Ratings: 17th Birthday

Lessons from the lost No.1s

Chess Club Live - Jeff Sonas of Chessmetrics put historic chess elo in context, here it is with Magnus Carlsen's elo record.

George H. D. Gossip - Wikipedia

Z - Sonas - The Greatest Chess Player of All Time PDF, PDF, World Chess Championships

January 1989 Rating List : r/chess

Quality Chess Blog » Is chess really a young man's game?

George Henry Mackenzie: The Forgotten American Chess Ace (March 24, 1837-April 14, 1891)