20x15 puzzle
Time:
1
2
2
3
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
3
1
3
1
3
3
1
3
8
2
4
8
8
9
9
9
10
1
1 4
10 9
8
1 6
1 6
8
19
2 14
20
Opacity:
Original image
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