15x15 puzzle
Time:
1
1
1
8
1
2
1
2
1
2
1 1 1 10 10 10 10 10 10 10
3  7
2  7
2  7
2  7
2  7
1  7
1  7
1  7
1  7
7
 
 
1
3
2  2
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