20x15 puzzle
Time:
1
8
8
7
9
2
6
3
5
4
3
3
3
2
7
8
2
4
4
2
2
6
8
1 2
2
3
3
1 2
1 2
1 1 1
2 1 1 2 1
4 1 2
5 2
6 2
7 2 2
13 2
17
10 5
Opacity:
Original image
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