16x21 puzzle
Time:
1
1
1 1
4
1
11
1
9
1
9
10 11 11 11 12 9
1
9
1
1 1
1
6  1
 
 
 
 
1
4
1  5
10
10
10
10
10
11
11
11
11
1
 
 
1  3  1
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