I did eventually rewrite lots of things to try and make other board sizes work. I think initially I was just happy learning things in css, javascript etc, but didn’t make some things easy on myself to change the board size.
Enough changed that I just moved it to a new page
Let me know if I’ve broken anything too, in particular if it’s broken on mobile/tablet or on a particular browser 
The old 9x9 only one is still as it was on the old link.
Anyway you can end up with mad things like these
or
