Weekly Extreme Sudoku Competition for Oct 9 to Oct 15

Number 525, 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     1        
    3 2   9      
  2 4   5   1    
  6         2    
      6 8 2      
    5         1  
    2   3   6 7  
  9   7   8 4    
        6     3