Weekly Extreme Sudoku Competition for Jan 21 to Jan 27

Number 592, 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
  9   2   3      
  8 6         9  
                 
        6 9 7    
    4 7   5   6  
    1 3          
                 
  5         8 2  
      8   4 3 1 6