Weekly Extreme Sudoku Competition for Jan 11 to Jan 17

Number 6336, Extreme
by Crosswords Ltd. January 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      
  5   3 8     4  
    1       9    
  7 4       8    
      8   1   3 9
            2 5  
    2       4    
  4     6 7   9  
    3 9