And if you want something cool to do with this, try implementing Gliński's variant of chess. It’s something I’m dabbling in, but no doubt an order of magnitude

And if you want something cool to do with this, try implementing Gliński's variant of chess. It’s something I’m dabbling in, but no doubt an order of magnitude more difficult to implement than orthodox chess. The idea of indexing by cubes is so obvious once you discover it, but maybe not as easy to intuit. Same goes for the data structures.