Weekly Extreme Sudoku Competition for Dec 13 to Dec 19

Number 169, Extreme
by Crosswords Ltd. November 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   9           7
          4      
    5 6 3 7 2    
                1
1   7 3   6 9   2
6                
    6 8 4 5 1    
      7         8
2           5   6