Pictured below is the world's first successful stand-alone Camelot PC program, and the winner of the 2008 WCF Camelot Computer World Championship.  The program, created by Rick Fadden, is called CHAXX.  The program's current version, Chaxx 2.60, features a Graphical User Interface, and is considerably stronger than Chaxx 1.13, the version that won the championship.  Chaxx continues to evolve and continues to get stronger.  It now is better than almost all, perhaps all, human competitors.  You can view some of Chaxx's games here and here.