20x15 puzzle
Time:
8
7
8
7
7
7
7
2
4
3
3
3
2
2
1
1
4
1
4
1
4
1
3
2
3
1
3
1
4
1
2
1
4
3
1 1 13
20
7 2 7 1
7 1 3
8 1
9 1
10 2
11 4
Opacity:
Original image
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