23x15 puzzle
Time:
4
1
4
1
6
1
6
1
6
1
6 1
3
2 6 6 4
1
4
1
6 6 6 5 6 4
1
3
1
4
2
1
7 6 7
 
 
1
1
2
5  7  7
4  11  3
6  15
18  4
10  5  3
7  15
1
 
 
5
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