The power & the feel of championship play! Excalibur Electronics brings you an electronic chess masterpiece-the Grandmaster! "Grandmaster"is the highest title awarded to human players. Excalibur's Grandmaster earns its name by capturing the essence of top-level chess competition not only in its powerful play, but in its look and feel. Its tournament-size vinyl playing surface shows off a meticulously crafted set of official pieces, weighted so they won’t tip over during a game. And Grandmaster features some of the most technologically advanced chess features in the world. The result - a highly sophisticated but easy-to-use competition chess set that combines classic design with 21st century technology. World's first auto sensory board with actual vinyl surface used in tournament play Super strong chess program capable of beating over 99% of all chess players. Estimated rating of 2200 master-strength 2 Large LCD Displays with Dual Chess Clocks and Countdown Timer shows your every move, hints, warnings, and scores 100 levels of play, plus 5 teach modes, 32 book opening trainers, and 32 great games 1 or 2-person mode with scoring, hints and analysis Saves game in memory for future use Powered by 4 AA batteries or optional A/C adapter (batteries not included