Weekly Extreme Sudoku Competition for Jul 31 to Aug 6

Number 515, 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       2     4  
      4 5   1    
6       9       7
8   4         7  
      3   7      
            9   3
7       1       4
    9   3 4      
  8             5