Wanted: willing puzzle fans to help solve the internet’s most complicated and enduring mystery. Only those conversant in hexidecimal cryptology, medieval Welsh poetry and classical music theory – among many others – need apply.
After a 12 month hiatus, Cicada 3301 – a complex collection of anonymously-set puzzles, without apparent purpose, that have nevertheless held thousands of amateur web sleuths rapt – has made a reappearance.
