15x15 puzzle
Time:
11
11
1
7
1
2
1
1
4
2
2
1
1
4
2
4
6
1
4
5
1
1
3
1
1
3
1
2
3
1
3
2
2
2
6 1 2
3 6
3 1 5
12 1
13 1
3 1 4 2
15
Opacity:
Original image
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