The OM CORR (short for correspondence) wasn't always a separate chess database until about 10 years ago when the need from correspondence chess players stood out. With 1,9 million games, it is the ICCF and generally correspondence games best chess database. Mainly used by the correspondence chess players, the OM CORR shows true power when helping the chess masters to analyze their openings or middle game. The ICCF is the largest correspondence chess federation and Opening Master is a proud chess database sponsor.

Five things for each chess player

Whether you are an amateur, beginner, or professional correspondence player you need FIVE things:

1) Your own brain,

2) Powerful multi-core computer with large build in memory, super-fast SSD flash disks,

3) Powerful engine such as Houdini or Stockfish

4) Chess database programs such as Chessbase or Chess Assistant

5) Powerful chess database such as OM OTB or OM CORR.


Part of OM CORR is specific OM TOP CORR.CTG. A library, which holds games of top correspondence players with ELO higher than 2300 for the last 5 years. You know better the theory these days evolves fast and furious. If you want to be successful at the correspondence game, you have to try to reach advantage already at the opening. Otherwise, it is proven very difficult to win against a player who also uses strong computer chess programs.

What is better than looking at the openings played by the world's best correspondence chess players. Look if they use your favorite variation or how they are successful with different openings. The library is in format CTG so you can view it with the Chessbase program.

Some interesting facts about the tree:

White most frequent move is 1 e4 with a success rate 55,5%. Right after that is 1 d4 with a success rate of 55%. One of the most frequent opening is variation of Najdorf Sicilian with move 6. H4 with success rate 57,3%. When playing black, a good path to keep up is to play Berlin defense in a Spanish game with white being successful only 52,7%. In closed games, the white gets biggest trauma from playing Slav Defense.

See all details in our new product.

om corr2015

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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