Weekly Extreme Sudoku Competition for Jan 8 to Jan 14

Number 851, Extreme
by Crosswords Ltd. December 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
    7       9    
        7       6
3   9 6   4     7
      8     7    
4 2           6 5
    6     5   3  
5     3   6     1
9       5        
    3       2