15x15 puzzle
Time:
15
14
9
3
5
3
1
3
1
2
1
1
2
2
2
1
2
2
1
1
3
1
1
2
2
1
3
1 10
4 7
4 2
4
4 1
3
3 2
3
3
3 1
2
2 1
5 2
6 2
7 1 1
Opacity:
Original image
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