Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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