Weekly Extreme Sudoku Competition for Jul 14 to Jul 20

Number 669, Extreme
by Crosswords Ltd. May 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 7     3  
    9     2 7    
5   7   3       4
  8 1   2   9 7  
6       9   5   1
    4 5     3    
  6     4 1      
          7