(206) 4

Part of 1989 Tournament Of Towns

Problems(1)

TOT 206 1989 Spring Train J4 closed path on Rubik's cube

Source:

Can one draw , on the surface of a Rubik's cube , a closed path which crosses each little square exactly once and does not pass through any vertex of a square?
(S . Fomin, Leningrad)

combinatoricscombinatorial geometrygeometry3D geometry