15x18 puzzle
Time:
7
6
5
1
2
2
3
2
2
1
1
9
9
10
6
3
1
5
2
2
6
4
1
8
4
1
1
3
1
2
6
7
8
2 8
1 1 7
2 4
3 3 1
3 4 2
3 1 4 2
8 5
6 3
Opacity:
Original image
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