Chess training site known for its tactics trainer, opening trainer, and large game database.
Historical game database with over 10 million games, player bios, a forum, and a puzzle archive.
Free online database of millions of master games with a search interface and opening statistics.
Cloud database of 40M+ chess positions with optimal engine moves, built for opening research.
Open dataset of all Lichess games, available for free bulk download in PGN and other formats.
Cloud chess analysis with high-speed Stockfish and Lc0 on powerful remote servers.
Curated PGN game files organized by player, opening, and tournament for free download.
Archive of millions of FICS games, available for free bulk download by month.
Weekly chess news and PGN download service covering all major tournaments, running since 1994.
Searchable game database with millions of games, an opening explorer, and player statistics.
Free, open-source chess database and analysis GUI for Windows, macOS, and Linux.
Free, open-source chess database and PGN viewer with a clean interface for game management.
German chess company behind the ChessBase database, Fritz engine, and a major chess news site.