15x20 puzzle
Time:
10
10
11
11
10
1
8
2
2
8
15
12
13
12
12
12
8
4
4
7
2
3
1 1 1
9
2 9
5 8
5 8
14
15
15
13 1
15
15
15
15
Opacity:
Original image
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