15x20 puzzle
Time:
1
7
5
5
2
6
6
1
5
1
5
5
1
3
2
3
1
2
5
10
3
8
3
2
6
3
10
3
1
1
2
1
1 2
1 2
2 1
4
1 4
4
5
1 5
1 2 1 4
13 1
8 1
15
15
15
Opacity:
Original image
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