This puzzle is not easy but not too difficult.
2 couples of pieces are linked by a rotational move.
those couples are inside a frame.
The first couple MUST get out of the frame with rotations.
The second MUST get out of the frame with translations.
The level is : 126.96.36.199.8
5.318 w x
8.174 d x
2.094 w x
3.218 d x