Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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