Weekly Extreme Sudoku Competition for Dec 1 to Dec 7

Number 950, 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
        3       6
    5     7      
1     8   4 3   7
        2     3  
2 1   7   3   9  
  4              
7   6 3   1     4
      5     2    
9