23x15 puzzle
Time:
1
3
1
3
1
3
1
3
1
1
1
1
3
1
4
1
4
1
5
4
7
5
6
5
6
5
7
1
1
5
1
4
1
5
1
3
1
3
1
4
1
4
1
3
2
3
2
4
 
 
3
4
5
4
4
 
10  11
4  2
6  1
10  2  1
23
4  18
23
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