this post was submitted on 20 Apr 2026
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What is this thing?
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Let us help you identify that mysterious object you’ve found.
Currently in CHALLENGE mode: If you've got something obscure knocking about, post a picture, and let's see how we do. Please prefix such posts with "CHALLENGE:" so we know we've got a fighting chance.
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The trick to knots is that only two kinds of them exist in 2D. The knot that is a knot and the one that isn't. To transform any knot into not a knot you only need to cross the rope through itself once. Ie cut and splice.
If you want I can give you abstract tips. But I think my hint was already close to telling you the solution.
Cut the rope. Got it!
Insanity it is then.