This is a 3D version of the original 2D 15 slide puzzles, with cubes!
(The original version of Roll Over Puzzle is designed by John Harris in 1970's.)

If you can solve the 15 silde puzzle and looking for new challenges, then this will be your next puzzle!

So step up to the next level.

In this 3D slide puzzle you can choose your own goal.
Here are the six basic goal:
1) move the cubes to see square on face of the cubes
2) move the cubes to see line on face of the cubes (lines orientation is not important)
3) move the cubes to see line on face of the cubes and all lines are parallel
4) move the cubes to see number on face of the cubes ( orientation is not important)
5) move the cubes to see number on face of the cubes and orientation of numbers should be same.
6) move the cubes to see number on face of the cubes in order and with same orientation.

it's your choice.

But feel free to find new challenges!
Printable 3D version of 3x3 is available on tinkercad:
www.tinkercad.com/things/f9JSRcHARTX
and
www.thingiverse.com/thing:4638961