15x20 puzzle
Time:
2
8
2
8
2
8
2
8
1
7
1
8
1
7
1
7
1
7
1
7
1
7
1
7
2
7
2
8
2
7
15
4 3
4 1 1
15
15
15
15
15
15
15
Opacity:
Original image
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