Weekly Extreme Sudoku Competition for Dec 14 to Dec 20

Number 1004, 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
8     2          
      9   4     8
  5       7   2  
7 6         5 4  
    8       3    
  4 1         6 2
  1   4       8  
9     8   2     6
          9     4