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Caissa's Web Online Chess

Caissa the Online Chess Muse
If you are using a mobile device or tablet, please check out the latest interface changes on the new site. There's a brand new design for narrow screens and portrait-oriented devices, which will make using Caissa on your phone easier than ever!
This site is provided as an alternative platform for members who joined before the new platform launch. This site will continue to be available for some time, and both sites will operate in parallel to allow players to finish current games and acclimate to the new interface. New account registrations and subscriptions are now handled exclusively on the new site.

Caissa.com New Site