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