Tanya Khovanova's Math Blog (opens in new tab)

I’ve been staring at my icosahedron, trying to solve the following puzzle by Konstantin Knop. Puzzle. One face of an icosahedron is special. The numbers 2, 3, and 5 are written at its vertices in some order. All other vertices of the icosahedron are labeled with 1. In one query, we may ask an oracle […]