Weekly Extreme Sudoku Competition for Jan 28 to Feb 3

Number 593, 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           6  
    2 5   6      
    6 9 8   5 1  
  4 9         7  
        1        
  6         9 5  
    8   4 7 3    
      2   8 7    
              2