Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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