Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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