15x20 puzzle
Time:
2
1
6
1
7
4
3
5
1
2
1
18
18
18
14
9
4
5
6
1 8
1 8
1 8
2 7
1 5
1 1 5
1 1 5
1 1 5
1 1 4
2 1 4
2 5
5
3
1 3
1 3
4
Opacity:
Original image
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