A global internet puzzle that requires advanced computer skills to solve has reopened online.
It is the third year running that the mysterious Cicada 3301 has appeared, with no clues as to who is behind the puzzle.
Some believe it is a recruitment process for a government spy agency, while others believe it could be the work of a bank.
The puzzle takes people on a treasure trail around the so-called dark net.
This year's competition was announced via a Twitter account to which was attached an image file with the following message: "Hello. Epiphany is upon you. Your pilgrimage has begun. Enlightenment awaits. Good luck. 3301."
Source : http://www.bbc.co.uk/news/technology-25667292
Cicada 3301 twitter source : https://twitter.com/1231507051321
Previous mystreies : http://uncovering-cicada.wikia.com/wiki/What_Happened_Part_1_(2013)
This kinda stuff fascinates me , and i wish i had the skillset to have a pop at it , wonder if any tempers fancy a go. Or have any had ago previously ? . This is the first i had heard of it and found it interesting enough to post here FYI.