15x15 puzzle
Time:
1
2
1
1
1
1
2
1
2
2
3
2
5
2
5
2
4
3
4
3
4
2
3
2
3
2
2
2
2
3
4
3
1 2 10
10
2 9 1
1 7 1
3
2 2
13
15
Opacity:
Original image
You might wish to visit the
archives
, if you want more.