15x20 puzzle
Time:
7
7
8
1
5
1
3
1
1
4
1
1
6
1
7
2
9
9
8
2
1
5
1
5
1
4
1
1
6
1
1
1
1 2
3 1 1
8
3 9
3 10
15
12 1
7 2 2
4 4 1
5 4
3 1 3 3
Opacity:
Original image
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