Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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