20x15 puzzle
Time:
6
6
2
2
2
3
2
1
1
2
1
2
3
6
6
4
1
7
5
1
4
2
4
1
4
1
4
7
6
3
3
4
3
1
4 5
14 4
14 4
2 11
2 2 6 6
4 3 1 1 6
17 2
Opacity:
Original image
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