Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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