15x20 puzzle
Time:
8
8
8
8
1
7
2
8
10
11
2
2
5
6
6
1
4
2
1
6
8
8
1 2
5 2
2 2
4 4 2 2
9 2 2
8 2 3
15
10 4
10 3
10 3
15
Opacity:
Original image
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