Pretty minimal in presentation; no frills for sure, but still a fairly well-considered translation of chess into 1 dimension. Could have stood to have a state recognizing win conditions, rather than just continuing "play."
Despite my misgivings, there's a strong theoretical foundation here and I've got a good bit of respect for what it manages to do on a design level. A little more polish and user friendliness and this could be an excellent game to play with my friends over lunch. Heck, give this a UI and make it for mobile and you could easily sell this almost otherwise unmodified.
EDIT: a itch bug made me post this comment three times. Sorry! Cleaned it up.