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