15x21 puzzle
Time:
11
1
9
6
5
3
7
7
3
1
2
3
3
1
5
1
8
8
5
3
5
2
7
2
1
4
15
14
14
6 6
14
3 2 1 2 1
2 3 1 3 1
2 1 1 4
2 1 2 2
1 3
1 2
1
1
1
Opacity:
Original image
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