- math olympiad
- unsolved problems in computer science
- the x-games
edit:
math olympiad or unsolved problems in computer science?

edit:
math olympiad or unsolved problems in computer science?
#2 if there's rng manipulation (cryptography problem), #1 if it's pure probabilities
is signals processing technically math olympiad or are we going to need to add a fourth category
I feel like we need a fourth category of "ironic self-loathing" for mediocre kusoge and/or Battletoads