circle-in-square-1

Crossnumber winners, issue 10
Did you solve it?
Constructing the cover of Issue 10
21 simple steps to draw your own Islamic pattern!
Crossnumber winners, Issue 08
Did you solve it?
Cat among the pigeons
Some interesting observations with the pigeonhole principle
Top Ten vote: Colours of chalk
Vote for your favourite colour of chalk for Issue 04: is it white, yellow, or the Post Office Tower?
Somewhere over the rainbow
Some mathematical questions you might have wondered every time you look at one of those rainbows