Excalibur Einstein LCD Chess Wizard E123CS EXCALIBUR E123CS Einstein LCD Chess Wizard. For chess on the go, there is simply no other device that can provide the same level of incredible fun and excitement. More than 50 levels of play will keep any player of any skill level playing at their best. Features a threat indicator, automatic scoring, game timer, undo key and more. A hint option gives players a virtual chess coach to help them learn and master this game of strategy and logic.