Daily Killer Sudoku Competition for Dec 31

Number 7215, Tough
65 people took an average of 32 minutes to correctly complete this puzzle

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Future Puzzle - will be submitted on the relevant day
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J
23
4
 
8
 
13
15
 
16
 
10
 
11
13
 
 
 
 
 
13
 
 
 
 
24
6
 
 
 
20
33
 
 
 
15
 
19
 
 
 
 
 
16
 
 
 
 
12
 
 
 
 
18
24
10
 
 
12
 
5
 
 
 
11
 
16
14
 
 
6
 
 
 
 
 
 
14
 
4