15x15 puzzle
Time:
13 13 8
4
7
1
2
7
1
2
1
5
3
1
10
1
10
2
10
2
4
3
7
1
2
7
1
2
8
3
13 13
15
5  7
5  5
9  5
15
15
15
3  5  3
2  3  2
5  3  2  2
3  5  3
15
15
 
 
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