The square tilling is a very common tilling. You must use hexagons to have a less boring tilling.
The following numbers label the colours around each vertex clockwise (for example "1212" shows that as you go clockwise around a vertex you find a square with colour 1, then colour 2, then colour 1, then colour 2 again, then it repeats).
The nine uniform colourings are:
- 2 types of 1112
- 2 types of 1123