This is a 9-sided polyhedron described by the Herschel graph. This is the smallest convex polyhedron that does not have a Hamiltonian cycle. Links:
Wikipedia page for the Herschel graph
This is a 9-sided polyhedron described by the Herschel graph. This is the smallest convex polyhedron that does not have a Hamiltonian cycle. Links:
Wikipedia page for the Herschel graph