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Still got questions? Check our Frequently Asked Questions below and see if you don't find answers there. If not contact us.

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Your mind will answer most questions if you learn to relax and wait for the answer. If not try our FAQs.

Below are a set of questions our chess players asked over a period of 15 years. We collected most of them and publish here so that you can learn a few facts before making a decision. If you come all the way here, it means you care. Thank you.

Common Queries and Questions

  1. How can I pay for the product?
  2. How frequently do you update your databases?

These and other questions are common queries which we receive. Below is a list of most commonly and frequently asked questions. If you still don't find the answer you are looking for please contact us here.

  • What is Unstoppable Chess Academy and why Opening Master joins their chess coaching methods? +

    The Unstoppable Chess Academy is for anyone who is interested in mastering the art of chess. Whether you're a beginner or an experienced player, the Academy offers a wide range of resources and tools that can help you improve your game and develop your skills.The Academy is designed for anyone who is serious about becoming a chess master. It offers comprehensive training programs, instructional videos, and other resources that can help you learn the fundamentals of the game, as well as more advanced tactics and strategies.
  • Can I become a student of the Unstoppable Chess Academy without purchase of the Opening Master Chess databases? +

    Yes, you can. But you won't enjoy the discounts offered by Opening Master. While normal lesson costs 30 EUR per 1 class hour, with Opening Master you will pay only 20 EUR per hour. If you purchase 10 hours with advance payment you enjoy even more savings and pay 180 EUR (10% discount). For bigger modules, annual programs please write your request to This email address is being protected from spambots. You need JavaScript enabled to view it.
  • What prices do you ask for your services? +

    We offer reasonable prices of subscriptions for one year. Within this year you receive monthly updates. Our plans start at 39 EUR for OM CORR which is suitable for correspondence chess players and has 2,2 million chess games. The OM OTB for 59 EUR offers over=the=board official FIDE games and has more than 9.5 million chess games. Our flagship program OM GOLEM is the biggest of all with more than 30 million chess games. The Unstoppable Chess Academy in connection with Opening Master charges 20 EUR / class hour.
  • What is your refund policy? +

    You are purchasing digital download product therefore there is no refund policy as such. Please read carefully which database is suitable for you and which chess database program you need to open it. (commercial Chessbase or free SCID). We offer both extensions. In extreme cases we are however willing to listen and help you to exchange the product or refund. We decide case by case.
  • What payments methods do your accept? +

    At the moment we accept payments using VISA, MASTER CARD, AMEX and PAYPAL. The gateway is provided by PayPal services which are secure and reliable. We've been using PayPal for more than 15 years and never had any issue nor our customers never complained of misconduct. For traditional gateway we use STRIPE technology which is also used by giants like Amazon, AliExpress, Apple, Etsy, Walmart, Target. We respect the privacy the most and do not collect any financial information. For INDIAN customers, we are accepting local debit cards via RazorPay with favorable prices.
  • What delivery options do you offer? +

    All chess database products are download only. After payment is made, you receive a link with download instructions. The databases are stored on a cloud vendor which you can later synchronize for updates. In extreme cases, we can send DVDs or USB keys with copied data however we do not recommend this solution as the data is too big and updates are provided monthly.
  • What support options are available? +

    You can always write us an email. Using our regular web contact form or directly at This email address is being protected from spambots. You need JavaScript enabled to view it.. We are also on Facebook so you can drop us a note there. The bottom right corner has chat option if you use Whatsapp you can directly chat we us.
  • What additional services are available? +

    Our chess databases are updated regularly. We create specialized reports and openings which we publish from time to time. We sponsor local federations and chess clubs with tournament prizes or also partner with the ICCF organization.
  • Who are your partners? +

    Opening Master is privately held company. The origin is dated to year 2004 however the creator of the chess database have been playing chess for more than 30 years and are internationally recognized masters. We partner with several country chess federations and chess clubs. We are global chess database partner of ICCF organization, main chess database for GCHESS and partnering with Unstoppable Chess Academy to provide chess lectures and coaching.
  • What languages do you offer support in? +

    Our support is mainly in English. You can also communicate with us in Slovak, Russian, German, French.
  • What job opportunities are available? +

    The help is always needed. If you are a good chess player (doesn't need to be an international master) and you have analytical thinking and know-how to operate Chess Base, Chess Assistant, and SCID, drop us a note. We want you on our team. You can earn good money for data mining and analysis. We are also looking for passionate chess coaches from USA and India
  • Do your offer discounts? +

    Yes, we do offer multiple licenses for chess federations, schools, and chess clubs. Please contact us separately if you would like a mass license. We also provide coupons for social media referrals. Our discounts are always on Black Friday, Cyber Monday, Christmas and Special Summer sales.
  • I don't have PayPal ID can I still pay? +

    Yes, you may. You don't need to have a PayPal user id to pay with VISA or MASTER cards. Just follow on written instructions on the PayPal site and press ''next'' when asking for your user id. Along with the payment, you will receive a free PayPal user id. The registration nor payment cost any extra fees for you. In extreme cases, we accept also direct bank wire transfers or you can send money by TransferWise. Please consult before.
  • Why is Opening Master commercial paid service, aren't the game free to distribute without any copyrights claims? +

    The chess game as such does not have copyright holders, therefore it belongs to everybody. The game is considered an event and people cannot claim copyrights for events that happened in the past (just like a tennis match). However the collection as such in form of the database, the quantitative methods, statistical measurements, and time spent on the creation of this database - and this is copyrighted. It is a paid service because of the associated costs while producing this database.
  • What is de-duplication? +

    The de-duplication is searching for twins in the information database. The double (twin) is known where one same body of the game has more records of header, name, tournament, etc...This is due to several parties recording the same game but recording it with different headers (e.g. one will write ''Kasparov'' and the other will write ''G.Kasparov''). The presence of doubles in the database distorts statistical outputs and the valuation of positions. The perfect database has zero doubles which are very difficult when organizing 29 million games. However Opening Master team can proudly say, the database is de-duplicated maximum power.
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FAQ didn't solve your problem?

Get direct access to the team via phone, email or facebook.

We, at Opening Master value direct and straight communication with constructive suggestions.  We always listen to our customers and try to improve our chess databases based on the needs for real players and real games. If you have something that you see and is bothering you, please tell us. It can be anything from the payment process, quality of the chess database, finding duplicates, incorrect games, missing specific tournament or country focus. We appreciate your involvement to improve us and improving your experience using our chess databases. 

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Contact us directly using email or our web forms. Or drop us a message via our facebook fanpage.

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Best chess database

Over the past 18 years, we have been developing a great chess database for players who expect great quality and supreme power. From biggest 30 mil GOLEM to individual chess databases like OM CORR with 2.1 million. We have it all.

Cloud system

All our chess databases are easily downloaded from the cloud system. We are using Sync.com cloud service with reliable, fast and secure servers. When we provide updates your folders get synchronized automatically.

Need Guidance?

We offer many tutorials how to manage the chess databases. Whether you are beginner or advance chess player we explain you all features.

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Monthly updates

When you download a chess database the support does not end. Every month we provide update to all subscribers so the chess players can stay up to date with most recent games and statistics. Don't use years old databases, it's in the price.

Downloadable PDFs

We collected best and most widely used 52 opening reports which we offer to you free of charge. They are included in all of the programs. It includes detailed PDF report about opening as well as PGN database for download.