Nice wood looking chess computer from 1986. In working condition and complete, without the original box. Unique misprint (Allergo instead of Allegro) on the sticker on the backside. Easy to operate. Programmed in accordance to the International Chess Rules including en-passant moves, castling and pawn promotions. Does not accept illegal moves. 8 skill levels including 1 tournament level. Change of level also during a game. Fast response times. Check, Stalemate and Mate announcement. Plays against itself. Easy correction of weak or wrong moves. Choice of color; change of color also during game. Take back function. Simple set up of board positions. Solves almost all Mate-in-2 problems. Full position verification at any time. PORTABLE Plays with 6 X 1.5V alkaline batteries or adapter (both not included).