Daily Killer Sudoku Competition for Oct 21

Number 7144, Tough
70 people took an average of 26 minutes to correctly complete this puzzle

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Future Puzzle - will be submitted on the relevant day
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A
B
C
D
E
F
G
H
J
4
13
10
17
 
8
 
12
 
 
 
 
11
 
17
 
 
18
9
 
10
 
42
 
 
 
 
16
 
13
 
 
 
8
12
 
 
19
5
 
 
13
 
 
17
 
 
 
 
 
 
 
 
 
19
 
 
16
 
9
 
17
 
 
11
 
 
7
 
8
8
10
 
 
16
 
10