15x23 puzzle
Time:
1
3
1
1
5
3
1
5
2
1
1
10
17
1
17
17
2
12
6
3
1
6
1
4
1
1
3
4
5
3
3
4
6
1 8
11
11
11
9
6
5
1 6
8
9
3 1 2
1
Opacity:
Original image
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