use space to move. sorry if on mobile then go to https://old.chessly.com/books/f86193bb-7b63-412c-87fe-2859fc8c3948/lessons/cc4f907d-8b5c-4c33-b1ca-8fc37da54853 But I made arg now too
for the background https://www.chess.com/games/view/178225 board&game https://colab.research.google.com/drive/13_VTCVK33UoTgy3T89qcSmfy14PxFB3Q#scrollTo=BA0SiO8Gpwn8