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.

mathgrant · A very tilted cell member

Since Aga closed the thread, PAH!

The mod has a secret rule regarding posts in the thread that makes them taggable or non-taggable, like "If a post has an odd number of periods, it's taggable" or "If a post begins with a vowel, it's taggable". If you make a taggable post, you are it. Become it three times, and you may not post any more. The game ends when the rule is solved by somebody.