15x23 puzzle
Time:
1
5
7
7
7
2
8
5
9
7
9
9
18
10
2
8
1
6
1
2
1
2
4
7
9
10
11
11
13
12
2 4
4
3
3
5
5
4
4
5
7
Opacity:
Original image
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