Correspondence Chess Server (CCS) is a global correspondence chess server founded in 2008. Moves are transmitted and recorded over the server so you only need a modern web browser with java script enabled. You can play unrated or rated games, participate in individual or team tournaments, team matches and theme tournaments. Game moves are invisible to others until to the end of game. Computer assistance is allowed, as any other kind of help. Ratings are calculated instantly with a new, innovative rating system. Chess ratings are calculated promptly.