Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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