Red Hot Pawn
Been playing chess online at Red Hot Pawn as thrig. Good website interface, and offers rated games, so you know roughly where you stand against other players.
For a great change of pace, try Shogi. Piece drops play an important role, unlike chess, and the different piece types and upgrading provides for interesting gameplay. Check out maka dai dai Shogi—the name surely the product of a great drinking session—for a crazy cast of characters.
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