Map Colouring and the Four Colour Theorem Posted on September 9, 2017April 9, 2021 by G4G Team Can you colour this map using only four colors? The Four Colour Theorem says that no more than four colours can be used so that the regions that share a common boundary do not share the same colour.Submitted by: MathsCraftNZTime Required: 30 minutes +You’ll Need: crayons or markersDownload Activity