{"puzzle":{"W":6,"H":4,"walls":[],"pieces":[[[0,0],[0,1]],[[0,0],[0,1],[1,0],[1,1]],[[0,0],[0,1],[1,1]],[[0,0],[1,0]],[[0,0],[1,0],[1,1],[2,0]],[[0,1],[1,0],[1,1]]],"start":[[3,1],[1,2],[0,0],[4,1],[1,0],[3,2]],"goals":[{"i":4,"pos":[3,2]}]},"stars":2.6666666666666665}