@FreddyR You're coming at this from a different direction, and you're being gentler and more methodical. Even so, you might like to read a thing I wrote (and will soon re-write):
@ColinTheMathmo What a fun read! I had planned to solve a game of this nature as the final part of the impartial games post, after covering Nim-sums and Sprague–Grundy theorem/function (which you introduce really well). Great stuff!
@FreddyR Thank you ... glad you like it.
I think it gets a bit inaccessible for the less technical reader in the middle, hence the desire to re-write is somewhat. But we'll see if/when I get the time.
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