23x15 puzzle
Time:
1
1
2
2
2
6
2
9
1
13
13
13
11
2
1
9
1
1
1
1
1
3
1
8
2
9
2
2
1
7 4
6 3
7 3
9 2
7 2
7 2
6 2
6 2
6 1
2 6
2 5
3 2 1
7 1 2
1 1 2 2
1 1
Opacity:
Original image
