To mark International Chess Day 2025, FIDE and Lichess.org hosted a 24-hour global online blitz tournament as an open celebration of chess as a universal language. The response was overwhelming. More than 20,000 players joined the event, making it one of the largest social chess tournaments ever held.
In total, 20,078 players took part, playing 85,252 games and making over 5.5 million moves. The format was a 5+3 blitz, and players could join at any time throughout the 24-hour period, making the event truly global and inclusive.