15x15 puzzle
Time:
1
2
1
1
1
1
2
1
2
2
3
2
5
2
5
2
4
3
4
3
4
2
3
2
3
2
2
2
2
3
4
3
1  2  10
10
2  9  1
1  7  1
3
 
 
2  2
13
15
 
 
 
 
 
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