Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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