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HMP Channings Wood was built on an old US army site near Newton Abbo

Clare (like gare) is a Chalkdust editor. In her spare time, she’s an assistant professor at Durham University. She likes Skittles, probability, and making the magazine look more like Cosmo.

The problem with addition
It doesn’t add up for Patrick Creagh
Chalkdust dissertation prize
Calling all final-year students!
The big argument: What’s the best way to end a proof?
QED or $\square$?
Issue 18
Twitch streaming, abacuses and Pascal's secrets feature in our AW23 issue! Plus all your favourite puzzles & columns.
Review of Elastic Numbers
We have a go at the puzzles in Daniel Griller's new book
Forget a new £1 coin, we need a £1.23 coin
Not the new coin we want, but the new coin we need