Weekly Extreme Sudoku Competition for Jan 21 to Jan 27

Number 18, Extreme
by Crosswords Ltd. November 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   1 9   6 8    
    7         5  
  6              
        9 8      
5       7       2
      6 4        
                 
  4         9 1  
    6 2   4 3   8