
Welcome to the 2024 FOBISIA Code Breaking Maths Challenge.
There are five codes in total to crack. Break them all and you can submit your details to record your achievement. How fast can you break them all? Good luck!
Information:
- Solve the code below and then type the password given in the clue in the link provided below (no capital letters).
- If you are sure you have got the password correct and the next clue does not load, then please refresh your page.
Here is the first clue to get you started!

When you have solved the clue, click here to try the next code.