Latest News

• 20th November 2021 - No activity in a year - eek. PHP upgraded to version 8. This caused an issue with the registration CAPTCHA. Should be fixed now. Thanks to Rhys for a bugreport. New challenge hopefully will come before the year is out or shortly into New Year.
• 16th November 2020 - Tiny hint added to Into The Fold. Also thanks to tehron for spotting a small bug (which does not affect the solving of the challenge itself)
• 15th November 2020 - Challenge 196 - Into The Fold is now online in the Stegano category. Good luck :)
• 21st June 2020 - Good news everyone! Murder in Brenningsdale now has a 'You are close. 3 or fewer incorrect statements!' message once your solution is almost correct. Also, the form now remembers your previous submission!

Latest Stats:

• Latest Registered User:

  hckorootx

• Latest Challenge Online:

  Into The Fold

• Latest User To Solve A Challenge:

  Neusbeer

• Latest Challenge Solved:

  Basic Crypt

• 3514 users have submitted a combined total of 12171 correct solutions since 18th July 2010

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