Z-Chess

Publisher's blurb Play the classic game of Chess using the TRS-80 graphics. Seven levels of difficulty (up to six levels of "look ahead") provide a challenging game for all. Alpha-Beta pruning and move sorting are employed to keep response times to a minimum. Setup mode allows the board to be arranged as desired. Plays all moves including castling and en passant captures. Numbered squares simplify move input. Possibly the fastest, good strategy chess game available.