20x15 puzzle
Time:
1 1 1
1
3
1
4
1
4
1
4
1
2
4
2
4
3
4
3
2
1
3
1
1
1
2
5 7 5 6 4 12 11
5
6  1
3  2
2
2  2
2  3  2
2  2
9  4  2
8  4  2
7  7
6  6
6
5  4
2
 
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