15x23 puzzle
Time:
2
3
5
2
3
5
1
3
1
4
2
1
1
1
4
2
2
2
2
2
1
2
8
1
2
13
1
1
13
1
2
14
1
5
1
2
1
1
3
1
2
2
3
3
2
3
4
1
3
4
15
2  5  2  2
2
4  7
3  7
10  3
8
4
4
4
4
4
4
3
3
4
4  1  2
2  1
4  3
5  4
15
2  2
 
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