Weekly Extreme Sudoku Competition for Jan 31 to Feb 6

Number 176, 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
    8 3     5    
  3     1        
9   4       7   1
    7 2   6 4 9  
                 
  9 5 4   1 8    
8   9       1   4
        7     2  
    1     9 3