Chessmaster is a series of chess-playing computer games. It is made by Ubisoft. It is the best-selling chess franchise in history, with more than five million games sold as of 2002[update]. The first version of the game, Chessmaster 2000, was released in 1986. This first version and the next one, Chessmaster 2100, were produced by the now-defunct Software Toolworks company.