Weekly Extreme Sudoku Competition for Jul 17 to Jul 23

Number 513, 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
    8 1     6    
  5           9 8
        9     3  
    1   7       6
      8   2      
5           9    
  1              
4 7       3   8  
    2 9   6 4