Congratulations to the team 'Proof by Counterexample' from The Thomas Hardye School, Dorset who are the 2017 Ritangle winners.
They submitted a correct answer on Thursday 7th December and we were able to check their working and verify them as winners. Once again, Ritangle was challenging and this is a magnificent achievement!
The answer to Ritangle 2017 was ramanujaneinsteinrobinson (not case sensitive and with the three names, Ramanujan, Einstein, Robinson in any order). A full solution to Ritangle 2017 will appear soon.
Thanks to all the students who took part and the teachers supporting them - the schools/colleges from which a correct answer was received are listed here.
Here is a full solution to Ritangle 2017.
We hope Ritangle will return in 2018.
|Winning School, Ritangle 2017||The Thomas Hardye School|
|Correct answer received from||
Ballakermeen High School
Barton Peveril College
Blessed George Napier Catholic School and Sixth Form College
The Bishop’s Stortford High School
British International School, Bratislava
The British School of Brussels
Cheam High School
The Cherwell School
City of Norwich School
Durham Sixth Form Centre
East Norfolk Sixth Form College
The English School, Nicosia
Garden International School
Harrogate Ladies College
Hills Road Sixth Form College
Holy Trinity CofE Secondary School
Jerudong International School
Jewish Community Secondary School
The Judd School
John Hampden Grammar School
Joseph Rowntree School
King Alfred’s Academy
King Edward VI Aston
King Edward VI Camp Hill School for Boys
King Edward VI College Stourbridge
King Edward’s School, Birmingham
King Henry VIII School
King’s College of Alicante
King’s College, Madrid
King’s College London Maths School
King’s College School
The Latymer School
Lawrence Sheriff School
Magdalen College School
Merchant Taylors’ School
Mossbourne Community Academy
Nottingham University Academy of Science and Technology
Peter Symonds College
Pontefract New College
Queen Elizabeth’s School, Barnet
The Ridings Federation Winterbourne International Academy
Royal Grammar School
Saltash.net Community School
Sir John Deane’s Sixth Form College
Sir William Borlase’s Grammar school
St Albans School
St Dominic’s Sixth Form college
St Mary’s Catholic School
Stretford Grammar School
Taverham High School
The Thomas Hardye School
Thurston Community College
Upton Court Grammar School
West Bridgford School
Westcliff High School for Boys
Wirral Grammar School for Girls
Wycombe Abbey School
Ritangle is a competition for teams of students of A level Mathematics, Scottish Highers or the International Baccalaureate
No knowledge of mathematics beyond A level Mathematics required
For the main competition, one question is released daily for 21 consecutive weekdays. The first question was released on 9th November 2017.
The final question unlocks an overall answer based on the solutions to all the questions
A maths hamper prize, including a free year long subscription to Integral, and trophy for the school or college of the winning team!
Technology can help with some Ritangle questions
Hints for question 21
We'll post any hints for question 21 here on weekdays at 0900 up until the end of the competition on 13th December.
Main Competition Questions
The answers to questions 1 to 20 are used to answer question 21.
To do this, each of your answers to questions 1 to 20 should be spelt out as text, so the answer 123 would read
You only need the first 20 characters, for example
The answers to questions 1 to 20 should then be arranged in grid form.
You do not need to solve every question to find the overall answer to Ritangle. Where there are gaps, you may be able to guess sensibly.
You will be able to submit your overall answer to Ritangle from 0900 on 7th December, when question 21 will be released and registration will close.
The five preliminary questions
We would like to clarify that, in Preliminary question A, a self-descriptive number needn't have exactly 7 digits. We have slightly altered the question shown here from the version originally released to help clarify this.
The answers to the preliminary questions combine to give a string of 17 characters.
Registered teams can now submit their answer to this.
A correct submission returns a clue for the main competition by email.