20x15 puzzle
Time:
9 10 9 9 9 9 10 3
6
2
6
2
6
2
6
2
6
2
6
9 9 3
1
3 4
1
5
1
5
1
 
 
 
 
 
1  2  3
20
20
7  7
15  2
15
15
15  1  1
15  1
16
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