Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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