Weekly Extreme Sudoku Competition for Jul 16 to Jul 22

Number 878, Extreme
by Crosswords Ltd. December 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
2 4     8        
  7     5        
  1   2       7  
    9     1     3
7 6     2     1 9
1     6     8    
  8       9   3  
        3     9  
        1     4 6