@sol_hsa@mastodon.gamedev.place
Post #1694273
2026-04-25 08:40 UTC
Bloggy on Sophie's Grids https://solhsa.com/oldernews2026.html#SOPHIE-S-GRIDS
Replies (1)
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@thomastc@mastodon.gamedev.place 2026-04-25 18:03
@sol_hsa@mastodon.gamedev.place I wonder if ✨maths✨ (algebra in particular) rather than brute force can answer these questions. I remember similar puzzles being proven impossible by calculating a parity bit from the puzzle state, in such a way that the value remained constant when a valid move is made. The converse might be harder. Also, if you can prove that a particular state is reachable from any start state, and moves are reversible, then any state is reachable from any other.