The Code

Games

Use the power of maths (and your fruit-catapult!) to defend your castle!

More games

Master of Mosaics
Find the symmetries and become Master of Mosaics!
Prima Pizzeria
Make perfect prime pizzas against the clock!

Cracking The Code

Get tips about the maths, puzzles and games behind The Code.

Solve Puzzles

Can you solve the Search Logic puzzle?

More Puzzles

Strange Dice
Work out the system behind our strange dice!
Cicada Survival
Figure out how to help the cicadas to survive!

What is The Code?

The Code is a three-part documentary about maths in the world around us, presented by Prof. Marcus du Sautoy. Hidden in the show and on this site were clues to a treasure, which was won on September 10th 2011 at Bletchley Park by Pete Ryland.

Even though the hunt is over, you can still play all of the game and solve all the puzzles by reading below or visiting our Treasure Hunt page!

Learn more with the Open University

For your free set of maths puzzles and treasure hunt tips, plus the chance to play an enhanced version of one of The Code games, visit The Open University.


Play the Treasure Hunt

The treasure's been found, but that doesn't mean you can't still solve The Code's puzzles!

To get all six clues for Episode 1, you need to:

Watch Episode 1's clips and find the three hidden clues
Keep track of your progress & get your first password with the Codebreaker!

To get all six clues for Episode 2, you need to:

Watch Episode 2's clips and find the three hidden clues
Keep track of your progress & get your second password with the Codebreaker!

To get all six clues for Episode 3, you need to:

Watch Episode 3's clips and find the three hidden clues
Track your progress & get your final password with the Codebreaker - then visit the Ultimate Challenge!

Got your three Codebreaker passwords? That means you're ready for the Ultimate Challenge!

The Ultimate Challenge is a beautiful 84-page puzzle book, full of puzzles from easy mazes and Sudoku to the most fiendish brainteasers!

Get the Ultimate Challenge, Crack The Code, and see if you can solve the hunt's puzzles!

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