Reticulated 2x2 Cube

This is the lesser known cousin of the famous 3x3 instance.

Figure 7.24. Cube 2x2

a 2×2 Rubik's cube™

a 2×2 Rubik's cube


vertices: 26
faces: 24
edges: 48
genus: 0

characteristic polynomial:

dual's characteristic polynomial:

chromatic number: 3

lattice group (lossy): Z(2) 13 × Z(3) 4