Ritangle is a competition for teams of students of A level Mathematics, the International Baccalaureate and Scottish Highers
No knowledge of mathematics beyond A level Mathematics required
The first five questions will be released on 1st, 8th, 15th, 22nd, 29th October 2018. Correct answers to these questions release a clue for the final question
The other 20 questions will then be released daily (on weekdays) from Wednesday November 7th 2018, with question 25 released on Tuesday 4th December 2018
The final question will be made available on Wednesday 5th December 2018
A maths hamper, including a one-year subscription to Integral, and trophy for the school or college of the winning team!
Technology can help with some Ritangle questions
Register your team for Ritangle today!
We are delighted that GCHQ is sponsoring this year’s Ritangle competition
Clues for Ritangle 2018
The correct answer to each of questions 1 to 25 releases a particular clue for the final question.
Please collect your clues carefully without sharing them with anyone outside your team. In addition, make a note of your final answers for the first 25 questions, because you will need them again later.
The first five questions will be released on Monday 1st, 8th, 15th, 22nd, 29th October 2018 at 0900.
Keep you answers safe for now (and don't share with other teams!), instructions about how to use your answers to unlock clues will follow on Twitter and on this webpage.