Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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