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Address:
Europe
Opening Master Ltd
Mariánska 32/A
Stupava 900 31
Slovak Republic

USA
2198 Main Street
Sarasota, 34237
Florida
Phone:
+1 (424) 610 7507
Send an Email
(optional)
Miscellaneous Information:

The exciting new Opening Master chess database features a unique chess games collection with more than 31.4 million top human chess games, making it the largest human chess database without duplicates. Experience the power and flexibility of Google No.1 "biggest 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 20 years of research and development. Download OM OTB with 10.2 million games, OM CORR with 2.2 million games, or OM PORTAL with 19 million games.

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Contact Info

Opening Master chess databases are copyrighted material. Please refer to our terms and conditions for using the collection. Do not distribute, make illegal copies or parts of the databases. We are not expensive.

Opening Master chess databases are only available as part of the Subscription plans.

Telephone

 

+421 (917) 252-978 (Europe)

+1 (424) 610-7507 (USA)


Global HQ Address

Mariánska 32/A
Stupava, 900 31, Slovakia

USA HQ Address

2198 Main Street
Sarasota, 34237, Florida


Email

administrator(at)openingmaster.com

 

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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