Humbug sets the fourth puzzle. Can you solve it?
Space-filling curves, cheating at cards and automated joke generation feature in our latest edition. Plus all your favourite puzzles & columns.
Celebrate the launch of issue 11 by taking part in our puzzle hunt
£100 of MathsGear goodies to be won if you can solve it
Are you a torus? A cone? Ed Spheran? Find out by answering a maximum of five easy questions
Grant applications, musical media and last-minute Olympics training are the topics readers have sent in to the professor's postbox this issue