Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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