Weekly Extreme Sudoku Competition for Sep 8 to Sep 14

Number 677, 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
  4     6     1  
1     3     7    
    5   8   2    
2       7 3     8
4               7
7     6 2       3
    2   1   6    
          5      
        3     8