20x15 puzzle
Time:
4
2
5
6
1
6
3
1
1
6
1
2
6
1
7
9
2
7
2
7
1
8
7
2
10
13
13
15
15
14
13
14
14
5
3 2
4 1 3 2
3 9
2 8
2 2 8
1 2 9
1 4 9
4 1 1 9
15
18
20
20
20
20
20
Opacity:
Original image
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