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