• The puzzlehunt starts on Saturday, November 10th at 9am PST. The hunt will consist of a set of puzzles and a metapuzzle. All puzzles, including the metapuzzle, will be released at the same time.
  • There is no minimum or maximum team size. For the best experience we recommend a team of 3 - 5 people.
  • There is a casual track and an expert track. See Ranking and Hints for more information about the differences between the two tracks.


  • Each answer is a string of letters A-Z. Lowercase letters will be changed into uppercase, and any other characters will be stripped before checking for correctness.
  • There is no guess limit to each puzzle. Each team will be limited to at most one guess per second.
  • It won’t be necessary to look at the HTML source/Javascript/CSS on any webpages for any puzzle, but you’re welcome to look anyway.


  • Teams that complete the hunt will be displayed on the leaderboard. Teams on the expert track will be ranked in order of solving the metapuzzle. Teams on the casual track will be shown in alphabetical order with no ranking.


  • Teams on the expert track can use three hints starting Sunday, November 11th at 9am PST, and will be allowed unlimited hints starting Monday, November 12th at 9am PST.
  • Teams on the casual track are allowed unlimited hints from the start of the hunt.
  • To use a hint, e-mail to ask for help on any puzzle. This can be something like describing where you're stuck (and we’ll try to get you unstuck) or asking a freeform question (e.g. “Which answers to these crossword clues are wrong?”). You should include your team name and the puzzle you would like help on in your email.


  • Teams may use any source of information, such as the internet and other people not actively participating in the hunt.
  • We reserve the right to disqualify any team for unsportsmanlike conduct.
  • We reserve the right to change any of these rules. If there’s a big change, we’ll announce it to all teams.
  • If you have any questions about these rules, or if you want to contact us for any reason, e-mail We will get back to you as soon as we can.