Saitek Mephisto Explorer Pro Chess Computer Ultimate Challenge: 64 Playing levels including Tournament and Blitz. Advanced Coaching: Coach Mode, Tactical Alerts, Capture Warnings, hints given and 5-move take-back to allow for experimentation Expert InsightUse Info Mode to see what the computer is thinking or Study Mode to learn from famous past games including major Opening Systems and famous grandmaster moves Advanced Board: Sensory board, LCD Display with built-in Chess Clock Power Management System: Automatic Power Down feature; unfinished games held in memory