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Twitch streaming, abacuses and Pascal's secrets feature in our AW23 issue! Plus all your favourite puzzles & columns.

Madeleine Hall takes a brief dive into the world’s favourite set-relationship-representation diagram.

The definitive chart of the best buttons

Puzzle #3 in our 2020 Christmas puzzle series

Modelling unemployment using simple differential equations!

Lindsay Lohan is really good at L'Hôpital's rule.