15x23 puzzle
Time:
9
1
10
3
10
1
4
7
2
3
6
7
6
2
4
1
2
3
2
3
3
3
3
3
7
3
5
3
4
2
1
14
13
13
7  3
6  2
6  1
4  1  1
3
3
2
 
 
 
 
 
2  1
3  1
1
1  1
4  5
12
13
 
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