RePieces

This puzzle looks like "sliding puzzle”.
You would move pieces moving four directions to complete the puzzle.

But interaction with other pieces is totally different form similar one.
Maybe you can move pieces freely, but the positions of two pieces is going to be replaced each other.
When you think you’re about to clear puzzle, you’d better check other pieces continuously.

To get a good record you don’t need to try not to move piece many times while you’re holding one.
Try not to drop the piece as much as you can.

It would be difficult for the first time. If that so, how about focus to get all pieces to be right position.
After that you can clear these puzzles with less turn.