Fifteen

Developed by Pedro Izecksohn.

1 2 4 7
5 3 8 F
D _ A B
E 6 9 C

Fifteen

1 2 4 7 5 3 8 F D _ A B E 6 9 C

1 2 4 7
5 3 8 F
D _ A B
E 6 9 C