Complexle: A Wordle-Style Game for Guessing Complexity Classes

fortnow · x · 2026-08-09

A student from UMass Amherst, Isik Ulusan, has developed Complexle, a hardcore guessing game inspired by Wordle. Instead of everyday vocabulary, players must guess computational complexity classes from theoretical computer science.

Players have 6 attempts, and after each guess, the game provides hints based on set-theoretic inclusion, the type of model it is defined on, and uniformity. For computer science and algorithm enthusiasts, it serves as both an entertaining puzzle and an educational tool.

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