Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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