15x26 puzzle
Time:
2
7
6
8
5
7
6
7
1
6
7
6
7
6
7
6
7
6
7
6
7
2
8
1
 
1  7
11
11
9
9
9
 
1  1
11
11
11
11
11
12
11
 
 
 
 
 
 
 
1
 
 
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