{"puzzle":{"W":5,"H":4,"walls":[],"pieces":[[[0,0]],[[0,0]],[[0,0]],[[0,0]],[[0,0]],[[0,0]],[[0,0],[0,1],[0,2]],[[0,0],[0,1],[1,0]],[[0,0],[1,0]],[[0,1],[1,0],[1,1]]],"start":[[2,0],[3,3],[4,0],[4,1],[4,2],[4,3],[1,0],[2,2],[0,3],[2,0]],"goals":[{"i":9,"pos":[3,0]}]},"stars":2.7777777777777777}