You need to enter the move E7-E5 as as '7', 'E', '5', 'E'.
Otherwise, remember there is no castling or en passant in this implementation, and the promotion rules permit only Queen.
You can play this game as bot on the LIChess server
Press 'R' and then 'ENTER' to start.
Press 'R' and then 'ENTER' to start.
Use the cursors (5,6,7,8) to move, and begin each level.
Suggest starting the level with left or right (i.e. 5 or 8), as 7 (up) will advance you directly into traffic.