December 16, 2020


ICCF-US and Opening Master Announce Cooperation Agreement


Opening Master is the biggest database of chess games played over-the-board or via correspondence way. Its latest version includes more than 9 million OTB games (OM OTB) and 2 million correspondence games (OM CORR) collected since last 30 years. 

The total database include games played between 1800 and November 2020. It also separately processes games played by players with pseudonyms on various chess servers with a total of 29 million games (OM GOLEM).

The Opening Master collects, deduplicates, indexes and cleans the games to obtain the highest quality on the market.

If you want to find out more, visit their website and use the coupon XMASICCFUS to gain 50% discount for the purchase.

Opening Master is proud sponsor of ICCF US Events

We have prepared 50% discount for ICCF US members to our Opening Master Chess databases. The coupon name is: XMASICCFUS
Chess players can use the coupon at the checkout.

PS last but not least. We are also proud sponsor of Global ICCF. See their website  (upper right corner, reload if you don't see it at first)