Dear chess lovers and game collectors, it's our pleasure to announce the biggest collection of human chess games between 1800 and 1990. You will not find a bigger collection of classical chess OTB players. If we missed some games, we challenge you to let us know. It is the complete history of chess in the most cleanest and purest form between 1800 and 1990.

The Nineteen Ninety

The OM OTB Chess database 1800-1990 contains 1,010,437 games. It is based on a large number of sources (internet, chess magazines, books, opening master) and it contains a lot of new, still unpublished data on the Internet - e.g. from Di Felice's series of chess tournaments and many corrections errors that occur in other databases and are the result of many years of work.

Player names and tournament names are normalized, refined. The database is carefully free of duplicates and contains only around 9000 non-stroke games, which are there mainly to generate complete tournament tables. (For comparison, MegaBase 2022 contains about 830 thousand games from the mentioned period, of which 48 thousand are without moves. That means Opening Master has a 30% higher collection of games than in the MegaBase. In our database, data from Czechoslovakia, Hungary, the former Soviet Union, USA, Argentina, Spain, Canada are significantly more accurate and precisely focused on the quality.

Our plan in the future is to gradually add more years and supplement or refine existing data to be a source of the largest historical precise collection of human chess games.

The OM 1990 is already uploaded to OM OTB and OM GOLEM folders for our subscribers. For new chess games enthusiasts please download easily at our website:

man playing chess 1863 by Opening Master


 “It’s the biggest and strongest chess database out there” - GM Simon Williams, CEO GCHESS

How is Opening Master different from free databases?

Despite getting our games from different sources, we dedicate a lot of time to eliminate duplicates. We also normalize the names of the players, which amounts to dozens or even hundreds of corrections a month. The free databases are often very low-quality and cluttered with lots of duplicates. There is no such thing as free lunch. We ask for a fair price starting 39 EUR for one year. It is much cheaper than less quality commercial chess databases out there.

Have you heard that we prepared a list of the top 52 chess openings for you? They are completely free where and no credit card or sign-up is needed.

Oh.. here is the download link. We almost forgot.

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Please be aware this is a subscription based digital content material with regular monthly updates. Please refer to our Terms and Conditions to lean more. If you do not wish to continue with us just cancel the subscription within your PayPal settings or Credit Card provider. You may still keep the copy of the chess databases for infinite number of days but will not receive any future updates.


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The chess databases are important for a number of reasons.

First and foremost, chess databases allow players to study and analyze past games. By studying the strategies and tactics used by top players, aspiring chess players can improve their own skills and understanding of the game. In addition, chess databases can be used to identify patterns and trends in a player's style, which can be helpful in preparing for a match against that player.

Second, chess databases can be used as a training tool. Many chess databases come with built-in analysis and training features that allow players to test their skills and practice specific openings or endgames. This can be particularly useful for players who are looking to improve their tactics or endgame play.

Third, chess databases can be used to track progress and measure improvement. By storing and analyzing a player's games over time, a chess database can help a player identify areas of weakness and track their progress as they work to improve.

Finally, chess databases can be used for research and analysis. Chess enthusiasts and researchers can use chess databases to study the history of the game, analyze the trends and patterns that have emerged over time, and identify the factors that contribute to a player's success.

Overall, chess databases are an invaluable resource for players, trainers, and researchers alike. They provide a wealth of information and tools that can be used to improve one's understanding and skills in the game of chess.


Visit and subscribe to our YouTube channel Youtube Openingmaster to learn chess openings and much more.


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All our chess databases are stored on external cloud service at This way you have access to the new release immediatelly after we publish it. 

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