Weekly Extreme Sudoku Competition for Dec 16 to Dec 22

Number 326, 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
  5   7          
    2 4       1  
1       2       7
  4 6     5      
  2   1   9   7  
    8 6     3 5  
8       3       2
  3         9    
          7   3