
Colin is the author of Cracking Mathematics and The Maths Behind, written to prove that he has nothing to prove (by contradiction).
Counting Countdowns
Colin counts Countdown's contingent of conundrum causing calculationsToo good to be Truchet
Colin Beveridge looks at different designs for 2- and 3-dimensional tilesCrossnumbers and cross products
A crossnumber clue takes us plunging headfirst towards projective geometry