Issue 23 was released on 17 November 2025. Enjoy the articles online or scroll down to view the magazine as a PDF.
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Features
In conversation with Christopher Lillicrap
Adam Townsend and Clare Wallace talk to the children’s programme creator about writing for younger generations
Microbe wars
May the bending and twisting forces be with Hannah Woods
Gearing up for the track
Mats Vermeeren gets involved in involutes
How many tiles does this game have?
Peter Rowlett gets in a tangle ... KNOT!
On the cover: Folding hydrogels, encoding mathematics
Ellen Jolley and Kat Phillips know when to hold, and when to fold
Let’s build a prime detector!
Bror Hjemgaard gets out his numerical toolbox
Significant figures: Julia Robinson
Ashleigh Ratcliffe tells the story of another hidden woman in mathematics.
A tale of $n$ cities
Donovan Young finds every connection wherever he goes.
Don’t connect four
David Budd gets carried away joining the dots. Resistance is few-tile.
Fun
The big argument: m/n or n/m?
Which is best?
What’s hot and what’s not, Issue 22
Fashion is fleeting, Chalkdust regulars are not.
Prize crossnumber, Issue 22
Win £100 of MathsGear goodies with our famously fiendish crossnumber
Dear Dirichlet, Issue 22
Rhythm, rivers and rises pollute the prof's postbag this issue
Cryptic crossword, issue 22
Can you solve it?
Comic: Moving
Moving house? Who you gonna call?
Would you rather?
Some difficult dilemmas to ponder
Top Ten: mathematical pets
The undisputed top ten mathematical pets this season
My favourite Tom Lehrer song
We asked the team for their favourites
Which season are you?
Summer or winter? Or one of the others? Take our quiz to find out
What’s your American high school clique?
Find out by using our simple flowchart
Printed versions
More from Chalkdust
Read Issue 23 now!
Sleep, coffee and cheating at Tetris feature in our SS26 issue! Plus all your favourite puzzles & columns.Dear Dirichlet, Issue 23
Travel, trade and Tony Blackburn pepper the prof's postbag this issueWhat’s hot and what’s not, Issue 23
Fashion is fleeting, Chalkdust regulars are not.
Which generation are you?
Always banging on about how numbers were better in the good old days? Take our quiz to find out how old you really are…
The Chalkdust guide to: Citation metrics
Confused by other academics telling you about their h-index? Then this handy guide may be just what you need!Cryptic crossword, Issue 23
Can you solve it?