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More from Chalkdust
Twist and shout! …and we’re fresh out of shout*
Henry Jaspars tries to untangle a mixed-up drinks order
The Maths of Life and Death
We review the sevnth of this year's nominees for the Book of the Year
Secrets, surveys and statistics
Paula Rowińska uses mathematics to answer some awkward questions
How do calculators do trigonometry?
W.L. Feldhusen explains the obscure sine-finding trick hiding inside your calculator!
Chalkdust’s Christmas conundrums
As the festive season strikes again, we'll be dishing out more fiendish puzzles – this time with prizes!
Optimal Pac-Man
Ghostbusting with graph theory