15x20 puzzle
Time:
19
18
3
1
1
1
9
1
16
1
1
2
7
1
1
2
5
1
1
5
1
4
3
1
1
1
9 3
4
5
2 4 1
2 2 1
5 1
2 2
2 5
7
2 1
2 1
2 2
2 5
2 5
3 5
2 5
2 4
2 2
1
Opacity:
Original image
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