15x20 puzzle
Time:
4
6
2
2
6
1
9
11
2
5
3
1
4
2
7
1
9
1
9
3
5
1
11
3
5
4 1 4
2 4 2
1 6 2
4 2 1
3 5
4 6
12
5 6
12
1 7 1
1 9
2 1
1 1
1 1
1
Opacity:
Original image
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