15x23 puzzle
Time:
4
1
4
3
1
4
1
1
4
2
3
4
4
3
4
9
4
11
4
13
19
1
4
7
5
2
1
2
2
1
5 2
2 1
2 2
1
11
10
13
14
1
1
2
2
3
3
4
4
5
5
5
6
1 6
1 7
9
Opacity:
Original image
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