13x18 puzzle
Time:
2
3
4
4
7
4
6
1
5
5
6
1
3
6
2
1
2
1
3
1
2
2
3
4
3
3
5
9
5 1 1
7
5
5
2
1
1
2
4
7 1
6 3
6 3
7 3
Opacity:
Original image
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