notpron - the hardest riddle on the internet

Warning

This repository contains spoilers for notpron. Some files are partial or complete solutions to their corresponding level.

Important I highly recommend trying to solve the first few levels before deciding the game isn't for you. Spoilers take all of the fun out of it, so go in blind and try it out yourself!	ABOUT Notpron (or "not pr0n") is an online puzzle game from 2004 which has been dubbed "the hardest riddle available on the internet" - and for good reason: Out of notpron's over 20 million visitors, only around 100 people have completed all 1381 levels2 of the puzzle. That's around 0.0005%, or 5 in a million. Most people quit before making it past level 3. 3
PROGRESS
Images, audio, notes and other files pertaining to solving the notpron puzzle. Level Progress Spreadsheet	The number of each folder corresponds to the level the files are from. This is just a backup of my personal progress.

Footnotes

1. Previously 140; later levels that required interaction with the creators have been removed. ^{4 5} ↩

2. https://en.wikipedia.org/wiki/Notpron#cite_note-:0-6 ↩

3. https://www.vice.com/de/article/notpron-ist-das-am-schwierigsten-zu-knackende-raetsel-des-internets-595/ ↩

4. https://en.wikipedia.org/wiki/Notpron#cite_note-4 ↩

5. https://sidequest.zone/2020/03/09/how-playing-notpron-in-2005-helped-my-programming-career-in-2017/ ↩