
This game is played by one player.

Target is to put the stones in ascending numerical order, starting at the
upper left corner with the stone labeled "1", down to the lower right corner,
where the stone with the highest number should be ... oh , not excatly :-)

One stone is missing, so you can move the other stones. You can move the
stones with several commands, choose the one you like the best.

Valid move commands: "north", "south", "east", "west" or
                     "left", "right", "up", "down".

Note: This commands moves the free space near the stone in the given direction. 
      Be carefull not to bang your had against the borders of the puzzle,
      or you will hurt yourself ...
