To give players the feeling of true tournament play, Excalibur has used a tournament sized vinyl surface with weighted tournament pieces. The unique auto-sensory feature allows you to gently raise a pieced from one square and place it on the next, and the game will automatically sense your movement. Plus, there are two LCD displays, one on each side of the board, with individual controls so one or two people can play! Enjoy a great challenging game against a friend even when your levels are different. The Grandmaster acts as an equalizer by giving either player hints and the option to receive a threat warning when a piece is under attack. In advanced 2-player mode, it also acts as an advisor by keeping score and recommending moves. What a great way to improve your game. Features built-in dual chess clocks, large chess pieces with 3-1/2-inch king, 32-ply take-back, super strong 2200 rating, one or two player mode with scoring hints and analysis, 100 levels of play, five teach modes and 32 "Greatest Games." Requires 4 "AA" alkaline batteries (not included).