15x23 puzzle
Time:
1
1
2
5
4
4
2
5
3
4
1
5
1
5
1
1
5
6
3
6
3
9 9 9 9 9 9
 
 
 
 
 
 
 
 
1
 
1
1  2
1  2  2
4  8
4  10
8
8
1  1  3  7
7  6
15
15
15
 
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