We love receiving your thoughts about and solutions to our live problems. We review and edit these for the benefit of other students. To see the most recently solved problems go to the primary student or secondary student solution pages.
We have written an article on what we are looking for when we decide which solutions to publish.
Explain your methods clearly for other school students to read.
Give reasons and convincing arguments or proofs where you can.
You can share your work with us by typing into the form or uploading a file (must be less than 10MB.)
By uploading your solution here you are giving us permission to publish your work, either as a whole or edited extracts, on the NRICH website and in associated educational materials for students and teachers, at our discretion.
Your information (first name, school name etc) is optional. If supplied, it may be used for attribution purposes only if your work is published on the website. Data that you supply on this form (e.g. age if supplied, location if supplied) may also be anonymised and used for evaluation and reporting.
For more information about the University's policies and procedures on handling personal information, and your rights under data protection legislation, please see https://www.information-compliance.admin.cam.ac.uk/data-protection/general-data.