Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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