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Chess Database - Pay what You really need

All chess database plans come with awesome support by email and phone. There is no hidden fee!

  • OM Basic
  • €28 / year
  • As-is chess databases, no monthly updates
  • OM OTB, OM CORR, OM 2500, OM TOP CORR, 52 Opening reports
  • Formats: PGN only
  • Sign Up
  • OM Standard
  • €39 / year
  • As-is chess databases, no monthly updates
  • OM GOLEM, OM OTB, OM CORR, OM PORTAL, OM 2500, 52 Opening Reports
  • Formats: Chessbase only
  • Sign Up
  • OM Ultimate
  • €59 / year
  • Monthly updates, includes also OM CORR TOP
  • OM GOLEM, OM OTB, OM CORR, OM PORTAL, OM CORR TOP, 52 Opening Reports
  • Formats: CB, CA, PGN
  • Sign Up
 

Download free OM POWER 2500+ to try out our chess databases. No credit card needed! Review in details our product portfolio View Product Portfolio.

The Opening Master Chess Databases since 2004

The Opening Master chess databases feature a unique chess games collection with more than 26 millions of top human chess games, making it the most significant human chess database without duplicates. Experience the power and flexibility of Google No.1 "largest chess database"  to create the ultimate chess winning game. Become a member today and enjoy the biggest chess database package, all carefully selected with more than 14 years of research and development. Subscribe to our annual programs starting as low as 28 EUR / year.

Chess database Matrix

Database name
OM OTB
OM CORR
OM PORTAL
OM GOLEM
OM OTB
OM CORR
OM PORTAL
OM GOLEM
OM OTB
OM CORR
OM PORTAL 2000
OM CORR 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
15,534,494
26,501,780
8,196,295
1,693,700
18,288,579
26,501,780
8,403,896
1,773,636
7,136,309
173,101
Formats
PGN
PGN
PGN
CB
CB
CB
CB
CB
CB, PGN
CB, PGN
CB
CB, CA, PGN
Last update performed
Apr 19, 2016
Sept 27, 2015
Oct 19, 2015
Jan 30, 2017
Oct 7, 2017
April 25, 2017
July 6, 2017
Jan 30, 2017
April 24, 2018
June 2, 2018
April 1, 2018
April 28, 2015
Update Frequency
Annually
Annually
Annually
Annually
Annually
Annually
Annually
quarterly
quarterly
quarterly
quarterly
quarterly
  • All
  • Announcements
  • Federations
  • General
  • Holidays
  • Newcomers Corner
  • Openings
  • Default
  • Title
  • Date
  • Random
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Our most famous chess databases

If you ask us, which is the most favorite product our customers are buying, the clear answer is OM CORR. All ICCF players love it. The OM OTB is the most powerful Over-the-board chess database ever made, and many FIDE GM players use it and OM GOLEM - well it's just the biggest one out there.

 

OM GOLEM

OM GOLEM is the ICON of all human chess databases. The database is so massive that the most robust computers are needed. It has more than 26 million human games without duplicates. It is a mixture of correspondence, OTB, and portal games.

OM CORR

The OM CORR wasn't always a separate chess database until about seven years ago when the need from correspondence players stood out. With 1,8 million games, it is the correspondence best chess database suited mostly for ICCF players.

OM OTB

The OM OTB with more than 8 million chess games is the biggest over-the-board collection of human chess one could come up with. It all began in 2004 when creators started to collect games and analyze them. A must package for all FIDE players.

 

ICCF - OM worldwide promotion

We are proud to present the worldwide agreement with ICCF about providing 50% discount to all ICCF valid members. Chess users can claim this discount via using special promo code received in their newsletters. If you missed the ICCF email, the copy is provided here. Please use this one time offer until December 31,2016.

 

 
 
ICCF
 
Dear {your name here}
 
Special offer for ICCF players!
 
We are happy to announce that due to recent cooperation agreement between ICCF and Opening Master - The Chess Database Company, we can offer to all ICCF members worldwide Special Discount Offer. This discount shall be available on any order placed for download from October 1 through December 31, 2016 and for all OM ULTIMATE packages chess players will pay only price of OM BASIC. (That is 29 EUR instead of 59 EUR). We are giving away 50% discount. How to apply for the discount? All you need is to type ICCFOM50 code into the discount field when checking out while purchasing of the product. The discount will be applied immediately.
 
 
What is Opening Master?
 
Opening Master is the biggest database of chess games played over the board or by correspondence. Its latest version includes more than 7.6 million OTB games and 1.6 million correspondence games. It also separately processes games played by players with pseudonyms on various chess servers (24 million games). Opening Master has been on the market for more than 10 years.
 
What can I use Opening Master for?
 
Practical chess players most often use the Opening Master database when preparing for an opponent. They look up games played by their future opponent in the database and prepare themselves for the opening. The database is also very well suited for preparing the rest of your repertoire – one can easily find out what variations are being played at what rate of success. There is an important difference between OTB and correspondence games however: correspondence games usually feature openings that are completely different from practical chess. With Opening Master, you don’t have to rely on your memory and can freely enjoy all kinds of complicated moves – all of them are easily accessible via the database! The database is frequently used by correspondence players even during the game for looking up whether their position has already occurred in other games, how and by whom it was interpreted and what are the statistics for it.
 
Who is Opening Master designed for?
 
Opening Master is designed for all practical and correspondence players that want to take chess seriously, no matter what their level is. Today, no players, not even the grandmasters, can do without computer assistance.
 
What environment can I use the Opening Master database in?
 
The database is published in three versions designed for the most popular chess database software programs – ChessBase (.cbv), ChessAssistant (.cdp) and SCID (.pgn). The PGN format is universal, can be used in all chess environments.
 
How is Opening Master different from the databases published by ChessBase and ChessAssistant?
 
The difference lies within the philosophy of building the database – ChessBase deals with whole tournaments and all the games, even those, which were not played. It builds a database representing the history of the chess game. Opening Master has a more pragmatic approach: it deals with all games that fulfill the following criteria:
 
- The game is newer than 1.1.1900
- The game has at least 8 played turns
- The players have a rating of at least 1300
- The game was played by people, not by programs
 
Last but not least, an important difference is the significantly lower price: you can get a year-long access to monthly updates from 29 EUR.
 
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.
 
Where can I find more information and order the Opening Master database?
 
You can find the newest information about Opening Master at our website www.openingmaster.com. You are welcome to become a member of the ever growing community of our product’s users.
 
 
 
© 2016 ICCF We hope you found this message to be useful. However, if you'd rather not receive future emails on behalf of ICCF's commercial partners, please opt-out by checking "Disable notifications sent on behalf of ICCF's commercial partners" in your personal settings.

ICCF - The International Correspondence Chess Federation www.iccf.com

 
 
  • About
  • Team
  • FAQ
image Modern. Powerful.

About Opening Master

Made in Power

Made in Chess

The Opening Master is the biggest human chess database collection of the world. It has been carefully collected over the past 14 years with focus on quality and quantity. More than 26 million of human chess games

Meet the team.

The founders of Opening Master chess database have been playing chess for more than 30 years each and are recognized international players.

image Alexander Horvath Founder

image Alex Horvath CEO

image Jan Helbich Lead Developer

image Slavka Hulecova Senior Analyst

Flexible & Adaptable chess databases

There are a series of smaller chess databases beyond the large OM GOLEM, to show how flexible the database system is, choose best plan for you and start playing.

Chess Base formats

The most popular chess database software can work with our chess databases

Chess Assistant formats

Those who prefer analysis with Chess Assistant we have formats. Also for SCID users a free PGN formats are supplied.

Why Opening Master

  • It's biggest +

    Yes, we have reached the massive collection of more than 26 million human chess games.
  • It's baddest +

    If you are standard or professional ICCF players, the OM CORR database with 1,8 million
  • Over the board +

    The FIDE collection or OM OTB with more than 8.8 million games. This is the
  • Top Notch Support +

    Didn't find a game you were looking for? Write to us. Found a wrong game?
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What Our Clients Say

  • Great chess databases! Greetings from Portland, Oregon, USA and the Portland Chess Club. Jonathan Ray Fortune (Correspondence Chess Master (CM), United States Chess Federation)
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Federations we supported Our Current and Previous Cooperations

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