Weekly Extreme Sudoku Competition for Jan 29 to Feb 4

Number 280, Extreme
by Crosswords Ltd. August 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     5 1   4
    5     8 3    
  9           7  
      3   1      
  1           5  
2     9   7 4    
4   8 6     7    
        3       6