title: I am looking for an algorithm to solve a "sliding puzzle", the kind of puzzle where you have an image broken into 16 pieces in a 4x4 frame
body: <p>I am looking for an algorithm to solve a "sliding puzzle", the kind of puzzle where you have an image broken into 16 pieces in a 4x4 frame, that you try to reassemble for a scrambled starting position.
  This particular puzzle has a restriction, the rows move only to the right (and wrap around), the whole row at once and the columns move only up (and wrap around), the whole column at once, both in one-tile steps.
  Is the math too complex?
  Anyone has experience with this kind of problem?</p>