Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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