The "first they came..." poem gets quoted and quoted and quoted and quoted and you know what, we do in fact know who they're coming for first, right now, and that is trans people, and the answer needs to be "absolutely the fuck not, you motherfuckers," full stop.

I like how people have so very different approaches to solving these problems. I considered brute-force, but thought that the space of possibilities would be too large to make that feasible.

Freemarket is great. I played a few sessions on it online a while ago. If love to give it another go.

Very nice! It's not a huge difference in speed between our boxes.

You went all-out for speed, with mutability and bit-twiddling. I'm afraid that's too much detail for my little brain to handle. I'll accept my slow solution, and raise a glass in admiration to yours.