Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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