Has anyone done notpron? It's touted as "The hardest riddle available on the internet". I missed it
on MeFi when it was posted a couple of years ago, but a friend showed it to me a couple of days ago, and I got up to level eight really quickly... which doesn't mean much, since it has 138 levels. Just wondering if anyone wants to play this with me?
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But, if so, you really, really have to be honest. It's no fun playing with someone who uses walkthroughs to cheat... I can do that myself, thanks. I just like having little puzzles to think about every day (aside from the regular, existential ones!), and this is long and involved enough to be fun to do with friends.