The largest database of chess games currently available is YottaChess, which boasts an impressive collection of 11.2 million chess games. This database is not only vast but also completely free to access, making it a popular choice among chess enthusiasts around the world. With such a massive collection of games, YottaChess provides players with a wealth of information and resources to study and analyze different strategies, openings, and endgame techniques.
Another notable chess database is Opening Master, which contains 9.0 million chess games. While it is slightly smaller than YottaChess, Opening Master offers a comprehensive collection of games specifically focused on openings. This database is priced at 60€, providing an affordable option for players who are primarily interested in studying and improving their opening repertoire.
MegaDatabase 2021 is another renowned chess database, with a collection of 8.4 million chess games. This database is widely regarded as one of the most authoritative sources for chess games, as it is regularly updated with the latest games from top-level tournaments and matches. However, the price for MegaDatabase 2021 is higher compared to other options, with a cost of 190€. Despite the higher price tag, many serious chess players and professionals consider MegaDatabase 2021 to be a valuable investment due to its extensive and up-to-date collection of games.
ChessOK Database, with 7.6 million chess games, is another popular choice among chess players. This database offers a comprehensive collection of games from various tournaments and matches, providing a wealth of material for players to study and analyze. Priced at 76€, ChessOK Database offers a balance between affordability and a vast collection of games.
It’s worth mentioning that Chess24 also offers a database of chess games, although it is slightly smaller in comparison, with 6 million chess games. However, accessing the Chess24 Database requires a premium subscription, which comes with additional features and benefits beyond the game database itself.
The largest chess databases available vary in terms of the number of games they contain and their respective prices. YottaChess stands out as the largest and free option, while Opening Master, MegaDatabase 2021, ChessOK Database, and Chess24 Database offer extensive collections of games with different pricing options. The choice of which database to use ultimately depends on the specific needs and preferences of individual players.