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

Humbug sets the fourth puzzle. Can you solve it?

We take a proper look at her mathematical accomplishments

Read more about the fire-breathing curves that appear on the cover of issue 05

For those of you tackling this dilemma, here's your answer...

Here is a very exciting way to measure how similar is your music playlist between your friends, or how similar are your Facebook contacts.