• The scrambled picture above is divided into blocks. The blocks in a similarly divided original picture were scrambled to produce this one.

• Press any key to toggle grid lines on and off to see the blocks clearly.
• The top row, bottom row, left row, and right row of blocks are fixed in their original positions to help solve the puzzle. They cannot be moved.
• The goal is to unscramble the blocks using a series of moves, with each move swapping two blocks.
• For each swap:
• Place the cursor on top of one block.
• Then press the mouse button and, holding the mouse button down, drag the block on top of the block you want to swap with.
• Then release the mouse button.
• Press ctrl-z to undo last swap.