15x20 puzzle
Time:
1
10
6
2
4
2
1
5
5
1
5
1
7
1
8
9
9
2
5
13
4
1
1
2
3
1 1
1 2
2
2
1 1 1
1 1 2 2
1 3 1
1 1 4 2
3 4 1
10 2
10 2
2 7 2
14
14
Opacity:
Original image
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