23x15 puzzle
Time:
1
7
1
8
1
7
1
6
1
7
1
7
1
5
1
5
1
6
1
1
4
1
2
1
1
1
2
2
1
1
2
1
1
1
5
1
4
1
4
1
4
1
4
1
4
1
5 2
1
2
1
2
1
15
 
 
 
 
 
 
2
8  13
23
9  7
20
10  1  1  1
6  2
2  2  5  5  3
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