Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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