Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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