Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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