• Chess Database with 31 million games,
    world biggest collection of chess games

  • Over-the-board database with 10 million,
    Correspondance with 2 million human games.

  • Download easily now,
    great database for every chess players.

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    on your favourite streaming platforms .

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Chess Database - Pay what You really need

Supporting the Cause

Introducing our annual subscription program, featuring monthly chess database updates for an enhanced chess experience. Please note that this is a digital download product. Upon sign-up, kindly read and accept our Terms and Conditions. You have the freedom to cancel the program anytime before the renewal date. Even if canceled, you will still have access to valuable chess databases lifetime without future updates. Thank you for supporting our cause to make a difference in the lives of underprivileged children through education and donations. Check out our latest chess cause charity, donate chess set and and save 20%

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  • OM CORR
  • €39
  • Correspondence chess database with 2.2 million human chess games. The largest collection of ICCF or corr chess players
  • FOR: Correspondence chess players (e.g. ICCF)
  • UPDATES: monthly
  • Formats: Chessbase, PGN
  • Pay with card
  • Check Out with PayPal
  • Review details
  • OM OTB
  • €59
  • Over-the-board database with 10.2 million human chess games. The largest FIDE/OTB chess database collection.
  • FOR: Classic chess players (e.g. FIDE players)
  • UPDATES: monthly
  • Formats: Chessbase. PGN
  • Pay with card
  • Check Out with PayPal
  • Review details
  • OM GOLEM
  • €99
  • Chess Database with 31.4 million human chess games. The largest ever collection of human chess games since 1800
  • FOR: Collectors - World largest human chess database
  • UPDATES: monthly
  • Formats: Chessbase, PGN
  • Pay with card
  • Check Out with PayPal
  • Review details
 

Download 56 top openings by Opening Master for free and try our chess databases for free. For indian flag small Indian customers please visit here to pay with local debit cards.

The Opening Master Chess Databases since 2004

Discover the ultimate chess winning game with Opening Master chess databases! Our exclusive collection features over 31 million top human chess games, making it the most extensive human chess database without any duplicates. The OM OTB with 10.2 millions human chess games or OM CORR with 2.2 millions correspondence chess games is something for every chess player.  ♥ Join today and unlock the biggest chess database package, carefully crafted over 18 years of research and development. Opening Master is official database partner of FIDE - International Chess Federation Education Commission, a proud sponsor of ICCF global tournaments and a trusted chess database partner of global chess education platform GCHESS. For our youngest ones we partner with ChessKid.com - the safest online chess platform for children. Opening Master gives back to the community by partnering with Gift of Chess, a humanitarian charitable organisation from NY, USA, to support underprivileged communities in Africa by giving out 1 million free chess sets. If you are a tournament organizer, arbiter, club trainer, streamer or player please join our partner OUTPOSTCHESS see many benefits for you. We offer you the most reliable and comprehensive chess databases starting as low as 39 EUR. Don't wait any longer to take your game to the next level - sign up now and start learning and winning! 

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

Subscribe to our YouTube channel Youtube Openingmaster to learn chess openings and much more. Listen to our Spotify Podcasts spotify icon transon weekly basis.

Chess database Matrix

Database name
OTB
Number of games
2,257,785
10,230,938
31,440,366
1,738,847
487,942
Formats supported
cbv, pgn
cbv, pgn
cbv, pgn
cbv, pgn
cbv, pgn
Last Update
06/2025
06/2025
06/2025
02/2025
02/2025

From our kitchen

Friday, 13 June 2025 10:30

In an era dominated by real-time online blitz games, grandmaster commentary streams, and AI-assisted training tools, one might assume that correspondence chess has faded into history replaced by the...

Wednesday, 11 June 2025 20:17

In the ever-evolving world of chess, where engines grow stronger, ChatGPT is everywhere and preparation becomes ever more critical, one thing remains constant - the need for accurate, reliable , and...

Tuesday, 13 May 2025 20:23

In an era where Artificial Intelligence dominates headlines whether it’s ChatGPT from OpenAI, Gemini by Google, or Elon Musk’s Grok on X, one might wonder: Is there anything still purely human? One...

Sunday, 06 April 2025 06:48

March was a dynamic and electrifying month for the global chess community. From world-class tournaments to almost perfect individual performances, the chessboard saw battles that inspired fans and...

Saturday, 08 March 2025 01:37

Today, on International Women’s Day, we honor the incredible women who have shaped the world of chess—past, present, and future. Chess has long been a game of strategy and intellect, but for...

Monday, 03 March 2025 00:48

We are thrilled to share that Opening Master has taken its nonprofit mission for chess education to Accra, Ghana, joining forces with The Gift of Chess (New York) and the West African Chess Academy....

Tuesday, 18 February 2025 23:12

The world of chess databases just witnessed a historic transformation! At Opening Master , we have undertaken the biggest clean-up of the century , removing more than 2 00,000 chess players and...

Sunday, 09 February 2025 18:23

Powerful stories of strong minded people effecting hundreds of thousands young children not only in Africa. Tunde Onakoya is now in New York where I met him last time discussing how one can grow up...

Sunday, 09 February 2025 13:50

Opening Master and FIDE Education Commission is calling all out STEM graduate degree students who would like to author interesting BIG DATA chess science project. With a massive chess database like...

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Our most famous chess databases

If you ask us, which is the most favourite 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 31.4 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 2.2 million games, it is the correspondence best chess database suited mostly for ICCF players.

OM OTB

The OM OTB with almost 10.2 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 analyse them. A must package for all FIDE players.

 

Children playing chess?

How early should children start playing chess? How early should children start studying chess? How early should children start using chess databases? Everything at once? Little by little? Or it will depend on the answer to the first question? I believe chess playing parents might be interested in this discussion. Curious children may read it too. Ideally, parents and kids: discuss this topic together and we will wait for the next young geniuses!

I am not a psychologist; therefore, I will discuss this topic as a chess player. Nevertheless, psychology play its role. One can remember Erikson's stages of psychosocial development to approach these questions, and it makes all the sense. Some days ago, we discussed the early age players achieve the GM title. To start earlier may help in this quest. Some of the youngest GM titled players started playing chess very early, like 5 years old (Magnus Carlsen and Sergey Karjakin, for example) or even before (like Judit Polgár). These are called chess prodigies. Nevertheless, while some of these prodigies can quickly become titled chess players, some others may not improve in the same way towards adulthood. If the first are widely noticed by the media, the latter are doomed to oblivion. Quoting the German philosopher Friedrich Nietzsche, “Only strong personalities can endure history, the weak ones are extinguished by it”. Well, how strong can be a personality at childhood? What if the history extinguished chess prodigies started playing chess a few years later? If there is an answer, we may never know...

First, it may depend on the child. Or it must depend on the child? If your kid wants to play chess, even in a very early age, why not? Would you prevent him/her just because he/she is, let's say, 3 years old? Probably, this may be the first sign age is not so relevant: the child interest. Let them start when they want to. But, please, don't expect him/her to learn how to move all the pieces in the first day. If he/she does accomplish it, however, we will be glad to know it: the youngest GMs list is never completed!

Second, it may depend on the parents. Or it must depend on the parents? Yes, this is always a good question: “force” the kid to or “allow” the kid to? Obviously, if parents introduce a child to chess and he/she becomes instantly interested then it's a perfect match! I'm wondering if this is common... However, if parents show their children that beautiful and shinny chess board and pieces and he/she doesn't even give a look: how disappointing! Should you try again later? Maybe once more, twice, … If the interest can't be disclosed by the attentive parents, maybe you can give him/her a ball and a sports kit next Christmas? Chess is not the only interesting activity to children. And if you, parents, are really interested in intellectual development of your children there are other board games (checkers, backgammon, go, …) and you can also consider music, dance or drawing. Or just spend a nice time with your kids: nature walking, watching a movie together, devouring sweets; in other words, playing together, whatever the game is!

Third, it may depend on the preschool. Or it must depend on the preschool? Although the advantages of having one or both parents at home taking care of their children are being rediscovered, commonly kids go to preschool (considering children 6 years old or younger). And there, it may be an interesting activity. While at home it may be an activity to develop only with one or both parents, at preschool it will be a group activity with their peers. And yes, my competitive look of chess loves this idea: competition since a very early age!

To conclude, if we have small humans why not to offer them small chess? Ladies and gentlemen, please welcome minichess! “What?” - some of you may ask. Minichess is played with the same pieces and rules as common chess but with smaller boards. The chess board size may vary from 3x3 to 6x6 (including the non-square boards 3x4, 4x5, 4x8 and 5x6) (columns x rows). Given mastering the pieces' movement is one of the first steps in our chess lives, these Lilliputian chess variants may be an easier, and very funny!, start. And you, what do you think, which is the right age to start playing chess?

Porto, 8-10-2015

Paulo de Morais

We use Sync.com Cloud

sync is the new save How it works:

1. You select type of Plan you wish to download. OM CORR, OM OTB or OM GOLEM

2. Pay by the  secure gateway PayPal. We accept major credit/debit cards.

3. A confirmation email with the subscription details comes to you.

4. We register your email address to cloud service SYNC and invite you to a shared folder. It's all FREE.

5. You download all the databases to your local hard drive. You will always find a newest version of the Opening Master chess databases on the cloud.

Why Opening Master

  • It's biggest +

    Yes, we have reached a massive collection of more than 30 million human chess games.
  • For correspondence or ICCF players +

    If you are standard or professional ICCF players, the OM CORR database with 2 million
  • For OTB or FIDE players +

    The FIDE collection or OM OTB with more than 9 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

  • “It’s the biggest and strongest chess database out there” - GM Simon Williams, CEO and Founder of GCHESS
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Federations we supported Our Current and Previous Cooperations

ICCF

ICCF

International Correspondence Chess Federation - Global Read More
Czechia

Czechia

Czech Correspondence Chess Federation Read More
India

India

All India Correspondence Chess Federation (AICCF) Read More
U.K.

U.K.

British Federation for Correspondence Chess Read More
Romania

Romania

Şah prin Corespondenţă Read More
Argentina

Argentina

Liga Argentina de Ajedrez por Correspondencia Read More
Spain

Spain

Asociación Espaňola de Ajadrez por Correspondencia Read More
Portugal

Portugal

Associacao Portuguesa de Xadrez por Correspondencia Read More
Turkey

Turkey

TCCA Turkish Correspondence Chess Association Read More
USA

USA

International Correspondence Chess Federation USA Read More
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