Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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