15x15 puzzle
Time:
11
4
5
3
4
2
3
2
1
1
1
1
1
1
1
1
1
4
2
4
4
5
5
11
11
7 7
5 5
3 5
2 5
1 3
1 2
2 3
3 1 4
4 4
4 5
5 2 6
Opacity:
Original image
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