Settlers of Catan’s board is based on hexagons.
Image: Catan Wikimedia Commons user Yonghokim, CC BY-SA 4.0

Calum is a lecturer in physics at Edge Hill University where he studies topological solitons and enjoys talking about maths and physics to anyone who will listen. He can often be found on the side of a mountain or out on a bike, talking to himself about solitons.
More from Chalkdust
Oπnions: In defence of toy models
Calum gets on his soap box about toy modelsCryptic wordsearch, Issue 19
Can you solve it?On the cover: skyrmions
Sven Bjarke Gudnason and Calum Ross introduce you to the wonderful world of skyrmionsDear Dirichlet, Issue 16
Girl guides, cooking, and public transport find their way into the prof's postbox this issue.Top ten vote issue 14
Have your say on the top ten matricesChristmas puzzle #2: A Christmas nonogram
Puzzle #2 in our 2020 Christmas puzzle series