15x23 puzzle
Time:
1
2
4
2
9
12
1
13
1
13
1
13
1
1
13
1
1
12
1
2
8
1
2
2
2
3
1 6
2
1
8
8
6
7
10
10
8
9
10
10
9
8
4
5
Opacity:
Original image
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