Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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