in reply to Lights out puzzle
Here's a quick Monday morning puzzle.Quick?? I spent several hours on it, not being able to come with anything better then this:
<Reveal this spoiler or all in this thread>
It's a bit randomized, but usually runs under 2 seconds on my machine. Run it with a filename as an argument to check the solution saved in the file.
Update: Removed forgotten debugging line.
Update2: Readmore changed to spoiler.
In Section
Meditations