This is the third match in round 1: from Group 3, it’s Vicky Neale, vs Jim Propp. The pitches are below, and at the end of this post there’s a poll where you can vote for your favourite bit of maths.
Take a look at both pitches, vote for the bit of maths that made you do the loudest “Aha!”, and if you know any more cool facts about either of the topics presented here, please write a comment below!