Weekly Extreme Sudoku Competition for Oct 21 to Oct 27

Number 631, 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
          4     3
  4 2   5        
      1          
1 9       3      
8   3       5   2
      8       3 4
  7   4   1      
        6   7 8  
5     7         9