15x15 puzzle
Time:
1
1
1
1
1
3
3
1
3
2
3
2
4
1
4
2
1
5
3
7
14
14
14
2 9
2 5
4
1 3
3
3
3
4
4
5
7
12
11
1 12
Opacity:
Original image
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