Weekly Extreme Sudoku Competition for Jan 24 to Jan 30

Number 749, 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
    3   2   4    
  7              
    8     5      
        6 2     4
  1   3   4   2  
3     7 8        
5     1 3   9    
              1 5
    7       3