15x21 puzzle
Time:
12
16
12
2
7
5
2
4
1
7
2
8
10
10
10
5
3 4
3 4
2 6
3 7
4 7
5 7
5 7
6 5
6 1 3
5 3
4
3 1
2 1
2 1
2
1
Opacity:
Original image
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