20x15 puzzle
Time:
5
5
1
5
2
9
2
5
8
1
5
1
5
2
5
2
5
1
6
1
5
5
2
4
2
2
2
2
1
2
2
1
3
4
6 2
6 5
3 2 1
3 1 1 1
11
13
17
17
8
Opacity:
Original image
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