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