Weekly Extreme Sudoku Competition for Oct 27 to Nov 2

Number 684, Extreme
by Crosswords Ltd. October 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 3
    4 7          
  8   4 2     9  
  1   2 9   6    
5               4
    3     5   1  
  6     4 1   8  
          2 1    
  3             2