Weekly Extreme Sudoku Competition for Jan 4 to Jan 10

Number 6329, Extreme
by Crosswords Ltd. January 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     3       4 1
6         8   5  
    8     1 7    
      4          
8   1       9   4
          2      
    6 1     4    
  9   5         6
1 8       6     3