Weekly Extreme Sudoku Competition for Dec 7 to Dec 13

Number 429, Extreme
by Crosswords Ltd. August 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
    1 9          
    4 3          
  8     7     9  
  7             5
    8 5   6 3    
1             4  
  9     3     7  
          1     4
      4       5