Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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