Comment by paulgb

(author here) some people in this thread and elsewhere asked me about whether an LLM could decode this, and the answer seems to be: not likely by itself, but it often can if it has access to a Python interpreter!

Here's a demo of Gemini Flash 2 solving one in 7s: https://bsky.app/profile/paulbutler.org/post/3lhzhroogws2g