Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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