Ideal for novice to experienced players; Equipped with a robotic arm - watch the 2Robot make its move! 128 levels including training, tournament and problem solving levels up to mate-in-6 moves. Programmed with International Chess Rules, knows en-passant moves, castlings and pawn promotion. Many special features can be chosen and displayed via the LCD if desired. Check, Stalemate and Mate announcement. TAKE BACK function for easy correction of weak or wrong moves (25 half moves).