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