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