The Chess Megabase is the largest high-quality chess database in the world. It doesn't just collect games; it curates them. The updates from 1 to 11 for the 2025 season bring hundreds of thousands of new encounters to your fingertips, ranging from elite super-tournaments to high-level correspondence games. These updates are essential for:

: Over 11 million games, including 113,000 to 120,000 annotated games by grandmasters. Update Service