Get the latest tech news
3-Coloring the Vertices of an Icosahedron
From the highly eclectic blog of Mark Dominus
The phrasing of the question, “how many” makes the problem sound harder than it is: the answer is zero because we can't even color half the icosahedron. So I took it off the shelf and found: “Draw a figure”, “If you cannot solve the proposed problem”, “Is it possible to satisfy the condition?”. To this important principle I would like to add “fuck around with it and maybe you will stumble across the answer by accident” as happened here.
Or read this on Hacker News