23x15 puzzle
Time:
5
7
5
7
5
7
4
8
4
8
4
8
4
7
4
7
4
6
4
6
4
6
3
6
3
7
3
8
4
8
4
7
4
8
4
7
4
7
4
7
4
6
4
7
5
1
6
23
23
23
11  9
3  1
 
 
3  2  1  1
8  8  1
23
23
23
23
23
23
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