Weekly Extreme Sudoku Competition for Jan 31 to Feb 6

Number 750, Extreme
by Crosswords Ltd. October 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
        1 2   8 6
              9  
8   2       3    
4     1   9      
  7   4   3   6  
          5     1
            1    
  4 5            
7 3   9 6