[ThomasCM]

This is the first large-scale analysis of Grandmaster activity across Chess.com and Lichess from 2008 to 2025, based on years of data collection and millions of games. I explored which platform top chess players prefer and how Chess.com and Lichess have evolved over the years.

All data comes from my project ChessMonitor, which maintains one of the largest chess databases in the world. Feel free to check it out! :)