Weekly Extreme Sudoku Competition for Aug 14 to Aug 20

Number 517, Extreme
by Crosswords Ltd. November 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
    9   8   6   2
5     3     4    
      9          
    1           3
2 7 3       9 6 5
            8    
          1      
7   5     3     8
4   8   2   5