Wonderful piece; what I like is that I remember this game being taught to me by the mathematics professors at my school, and I enjoyed the game but didn't ask a

Wonderful piece; what I like is that I remember this game being taught to me by the mathematics professors at my school, and I enjoyed the game but didn't ask any deeper questions about the game, such as its mathematical properties. Now here I see this way of looking at the game, perhaps even the reason for its existence, and it's like rediscovering an old friend.