the hardest puzzle on the internet - I tried / The Invitation

see also

• Solving the darknet riddle (2022)
  • Cicada was/is a cypherpunk recruitment effort.
• L’ALLIANCE des meilleurs HACKERS pour résoudre la plus grande ENIGME D’INTERNET (CICADA 3301) - focus on team & individual that have solve the first 2 challenges. The third one being not resolved (at least within public knowledge).