Fifteen

Developed by Pedro Izecksohn.

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

Fifteen

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

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