16x21 puzzle
Time:
6
7
7
1
7
1
2
1
6
1
15
1
14
13
13
1
11
1
6
1
1
1
1
4
1
2 1
6
5
5
6
5
5
3 5
11
11
11
11
11
15
Opacity:
Original image
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