15x20 puzzle
Time:
3
1
4
3
6
9
6
6
1
6
5
7
1
7
10
7
1
7
10
7
1
2 1
5 1 1
9 1
13
1 12
13
14
4 7
4 7
4 1 5
1
Opacity:
Original image
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