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In 2018, scientists discovered a new shape that is essential to multicellular life

Or, how a simple problem can get very complicated, very quickly...

The definitive chart of the circle's greatest parts

Problem solving 101, proof by storytelling, plus the return of all your favourite fun pages in our autumn 2016 edition.

Sit in your favourite chair and do away with those tedious algebraic proofs

Win £100 in our famous original crossnumber