19x31 puzzle
Time:
27 27 1
27
17
12
7
2
12
7
2
6
7
2
2
7
2
7
2
3
1
2
2
1
2
2
4
2
2
2
2
2
1
2
2
2 2
12
10
7  1
6  2
9
14
9  4
4
16
16
4
4
4
4
4
4
4
3
3
5
5
5
5
5
5
6
6
6
6
7
7
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