Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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