That, is a group of squares, not a cube. How is this more difficult then: permutate all possible orders for each length 1 to 9 the check and see if they are

That, is a group of squares, not a cube. How is this more difficult then: permutate all possible orders for each length 1 to 9 the check and see if they are in a dictionary this only 623,529*(3ish) operations.