More from Chalkdust
Read Issue 20 now!
Spirographs, complex triangles and a lot of ants feature in our AW24 issue! Plus all your favourite puzzles & columns.Chalkdust issue 20 – Coming 8 November
Pre-order your copy of our 9½-year anniversary issue now!Issue 19
Drinks orders, integer mysteries and the new LMS president feature in our SS24 issue! Plus all your favourite puzzles & columns.Dear Dirichlet, Issue 19
Game shows, flight and social media bots are among the problems solved in this issue's Dear Dirichlet agony aunt columnPrize crossnumber, Issue 19
Can you solve it?Which houseplant are you?
Find out by following our simple flowchart