Can an icosahedron be 3-colored? - The Ross Program
Channel: Jim Fowler
Date: 2021-05-18

Using three colors, can you paint the edges of an icosahedron so that, on each triangular face, each of the three colors appears?

You can read more about the subject at https://services.math.duke.edu/~ezra/Icos/icos.pdf which is where I took the terminology of 'minority triangle.'