Spirographs, complex triangles and a lot of ants feature in our AW24 issue! Plus all your favourite puzzles & columns.

We talk to the Fields medallist about his life, his work and his advice to his younger self.

Did you solve it?

Puzzle #1 in our 2020 Christmas puzzle series

Hugh Duncan returns with the long-awaited prequel in which he further explores the geometric patterns hidden behind the fractions.

If only the Earth were flat...