Weekly Extreme Sudoku Competition for Jan 15 to Jan 21

Number 539, 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
2     9          
  5 8     6 1    
  3     1 8   7  
  6 3       8    
8               5
    5       3 2  
  2   4 6     9  
      3     4 5  
          9     3