Daily Killer Sudoku Competition for May 7

Number 6977, Tough
70 people took an average of 30 minutes to correctly complete this puzzle

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Future Puzzle - will be submitted on the relevant day
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
10
13
14
 
15
 
4
 
12
 
 
9
 
 
21
 
 
 
24
 
13
 
12
9
 
 
12
 
 
15
 
 
 
21
 
 
6
 
 
17
 
 
 
13
 
15
 
 
17
 
 
 
11
 
 
16
 
 
 
7
 
20
 
11
16
 
 
11
10
 
 
10
 
4
 
 
 
17