1. Get the puzzle

When you click on this link, you will receive a puzzle (as an image) like the one on the right. There are red and black blocks. First of all, assign numbers to the blocks form left to right and top to bottom, starting from 0. For the example it would look like this:
0 1 2 3 4 5 6 7 8

2. Solve the puzzle

There will be only one corner block with red colour and this red corner block is allways the top left block. Blocks are randomly mixed and rotated. Now it's your job to fit all the blocks correctly together. On the right you can see the correct solution for the example above. The blocks are now arranged in this way (according to the numbers assigned to them like above):
6 7 8 0 1 5 2 3 4

3. Submit the solution

Now look at the blocks and check which ones are red. Their numbers (in the order of the blocks from top to bottom; left to right) give the solution. For the example above, it would be 6153. Send the solution to (time limit is 5 seconds):

"http://bright-shadows.net/GDO/TBS/challenges//programming/jigsaw/solution.php?solution="+red numbers