The OM CORR wasn't always a separate chess database until about 5 years ago when the need from correspondence chess players clearly stood out. With 1,7 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. Whether you are 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 4) chess database program such as Chess Base or Chess Assistant and 5) powerful chess database such as OM CORR.

Part of OM CORR is specific OM TOP CORR 2015.CTG. A library, which holds games of top correspondence players with ELO higher than 2300 for last 5 years. You know better the theory these days evolves fast and furious. If you want to be successful at 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 world's best correspondence players. Look if they use your favorite variation or how they are successful with different openings. The library is with format CTG so you can view it with Chess Base program.

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Some interesting facts about the tree:

White most frequent move is 1 e4 with success rate 55,5%. Right after that is 1 d4 with success rate 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 Spanish game with white being successful only 52,7%. In closed games, the white gets biggest trauma from playing Slav Defense.

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Chess database Matrix Specifics

Database name
OM OTB
OM CORR
OM PORTAL
OM GOLEM
OM OTB
OM CORR
OM PORTAL
OM GOLEM
OM OTB
OM CORR
OM PORTAL
OM CORR TOP 2300
Type of Subscription
BASIC
BASIC
BASIC
STANDARD
STANDARD
STANDARD
STANDARD
ULTIMATE
ULTIMATE
ULTIMATE
ULTIMATE
ULTIMATE
Number of games
7,600,674
1,613,952
1,107,088
26,501,780
7,600,674
1,572,820
15,534,494
26,501,780
8,196,295
1,693,700
18,288,579
173,101
Formats
PGN
PGN
PGN
CB
CB
CB
CB
CB
CB, CA, PGN
CB, CA, PGN
CB
CB, CA, PGN
Last update performed
Apr 19, 2016
Sept 27, 2015
Jan 13, 2015
Jan 30, 2017
Apr 19, 2016
Feb 18, 2016
Oct 19, 2015
Jan 30, 2017
Oct 7, 2017
April 25, 2017
July 6, 2017
April 28, 2015
Update Frequency
Annually
Annually
Annually
Annually
Annually
Annually
Annually
biMonthly
biMonthly
biMonthly
biMonthly
biMonthly

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