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About
The Four Colour Theorem is a game of competitive colouring in. Challenge yourself to colour in the pictures so that none of the colours touch. Then when you can do this try for the top score!
Where to buy
Prices for US · Updated 9/2/2026
News
Combinatorics - Graph Theory, Counting, Probability - Encyclopedia Britannica
Encyclopedia Britannica · 7/13/2026
The success of machine mathematicians shows us how to be OK with AI - New Scientist
New Scientist · 3/18/2026
A machine has verified the maths that won a Fields Medal: why it matters - The Hindu
The Hindu · 2/25/2026
Why the search for proof can’t be separated from faith - psyche.co
psyche.co · 2/12/2026
Isaac Asimov: ‘There is nothing more fascinating than odd corners of mathematics’ - Physics World
Physics World · 10/2/2024
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