Weekly Extreme Sudoku Competition for Aug 7 to Aug 13

Number 516, Extreme
by Crosswords Ltd. January puzzle packs Now Out!. Thanks for supporting our site.
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
          7     5
    9       3    
2 8     5       6
  9     8        
    2       6    
  6     2   9 7  
1       7     2 3
    4 8     1    
7