Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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