Find a scramble which will produce a Rubik's cube fulfilling the following criteria which uses as few turns of faces as possible (Half-Turn-Metric):
- Each of the six faces show exactly three colours
- No face shows its opposite colour (the colour of the centre of the opposite face)
- Each of the eight collections of three faces which share a corner show all six colours.
As an example of a conforming state here is a seventeen turn scramble (which is, of course, too long):
R' B F' R U2 F D' U R2 B F' U B2 L' D U' L
Which, when applied to a solved cube, produces:
Note that: there is no orange on the top, no green on the front, etc...; that each side shows exactly three colours; and looking directly at any corner one will see all six colours.