Who slides wins!

We have a "Who Slides Wins" entry blog at http://pygame-trials.blogspot.com .
We termed it as pygame-trials, because it is our first entry for a pyweek challenge and intial trials with pygame.
We have decided upon a simple sliding game. But a two player one! :) The computer and you slide on the random NxN jumbled picture and whoever slides in the less number of moves, wins the game.