Weekly Extreme Sudoku Competition for Sep 22 to Sep 28

Number 679, 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
    7   8 6 4   3
                 
4     5       7 1
7 3     6   5    
        1        
    4   2     8  
5 7       8     6
                 
1   9 6 4   3