Sliding puzzle

This applet requires Java 1.2 or greater to be installed, if you don't have it, please go to http://java.sun.com/products/jdk/1.2/jre/index.html and get the latest plug-in. The object of this puzzle is to get the big square piece to the top. There's no fan-fare when you do it, just the knowledge that you have done it. To move a piece, click on the same side as direction you want to move it, eg. to move a piece to the left, click on the left hand side. No piece can overlap another, so they must go into the gaps (there are two). There is a solution to this puzzle - there may be several. One solution takes 79 moves. To see it, look at the source code to this page. If you find a shorter way, please let me know. Good luck and good puzzling

Hint

Following are images of the solution that I have provided. Each stage represents 10 moves. If you want the solution but still want a little challenge, use these as a guide. If you're going through my solution, use these as a check point to make sure you haven't accidentally make a mistake.

Stage 1	Stage 2	Stage 3	Stage 4	Stage 5
Stage 6	Stage 7	Stage 8	Stage 9	Stage 10