Weekly Extreme Sudoku Competition for Aug 11 to Aug 17

Number 673, 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
          6      
4   6   2   7   1
    9   7       8
      3       4  
    5 6   2 1    
  1       7      
7       3   6    
6   2   5   4   9
      9