Weekly Extreme Sudoku Competition for Sep 29 to Oct 5

Number 680, 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
    1 8     2    
2   3         5  
  5     9       3
        7   1   4
  1           2  
6   5   2        
5       1     8  
  3         7   1
    9     6 4