Notpron
Notpron (also not pr0n ) is an online puzzle that was started in July 2004 by David Münnich from Saarbrücken . The name is made up of the two English terms not and pron , whereby pron is an Internet variation of the word porn (English pornographic ). So notpron does not mean pornographic . Each of the over 100 levels consists of a photo embedded in an HTML page. The hints for the solution are e.g. B. in the URL, in the title bar, in the picture, in the background music or in the source text of the page.
Notpron had around 7 million visitors by August 2004, but only 83 of them were able to solve the 138 levels at that time by January 2006. In January 2006 Spiegel Online considered the website Notpron and its imitation Frvade to be the most difficult puzzle on the Internet.
Initially the puzzle consisted of 5 levels, over the course of a year around 2 to 3 new levels were added each week until the developer stopped expanding the game in July 2005. According to Münnich, no more levels should be added to the 139 existing levels. Nevertheless, at the end of August 2008 the number of levels was increased to 140. In response to numerous complete solutions in Internet forums, some levels have already been changed. In May 2006, the author prepared a certificate for people who have completely solved the puzzle. They are assigned a good knowledge of audio and image processing, HTML development, dealing with computers, as well as a good grasp and understanding of music.
Individual evidence
- ↑ Current websites: No Porn, Rätsel , c't 19/2006, heise.de, September 18, 2006
- ↑ Surfed off: Big Countries, Big Ideas, Big Eyes - Enigmatic , Spiegel Online, January 12, 2006
- ↑ FAQ from Notpron , accessed on February 12, 2018
- ↑ a b c Nicola Staender: “Notpron is the most difficult puzzle on the Internet” , vice.com, November 12, 2015, accessed on February 12, 2018
- ↑ Michael Grothaus: The Story Behind The Web's Weirdest, Hardest Riddle , fastcompany.com, March 10, 2014, accessed February 13, 2018