The Grey Labyrinth is a collection of puzzles, riddles, mind games, paradoxes and other intellectually challenging diversions. Related topics: puzzle games, logic puzzles, lateral thinking puzzles, philosophy, mind benders, brain teasers, word problems, conundrums, 3d puzzles, spatial reasoning, intelligence tests, mathematical diversions, paradoxes, physics problems, reasoning, math, science.

Jedo the Jedi · Paragon in Training

I recently ran across this collection of unsolved codes/cryptograms. I've seen most of them before, and I'm certain I've considered posting at least one here before. I wondered if the GL might take a stab at any of them. As far as I know--though I'm no great puzzler--the GL is a collection of some of the greatest puzzle minds on the planet. Maybe you guys can solve them, maybe not. Maybe you don't want to.

The Zodiac 340 cipher
Other Zodiac links
KRYPTOS transcript
Another KRYPTOS resource
Feynman ciphers
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Paragon Tally: 19 mafia, 3 SKs (1 twice), 1 cultist, numerous chat scum...and counting.