Jigsaw Puzzle

Above is a grid containing a picture cut into pieces with one missing (blank) square. To play
  1. Press the Scramble button to mix up the pieces. Not scrambled enough? Press Scramble again!.
  2. Re-arrange the squares by clicking on a square next to the blank one. This piece will then swap places with the blank square.
  3. When you have re-arranged the pieces back in their original order, you have won!
  4. If you want to start again, press the Reset button.