Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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