Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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