23x17 puzzle
Time:
2
2
4
6
7
9
2
4
6
1
4
3
2
6
9
9
9
6
7
7
9
11
5
4
3
3
2
1
3 6
7 12
7 12
6 10
5 10
3 10
3 10
4 4 3
4 3 4
3 3 3
3 3
2
Opacity:
Original image
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