Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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