Weekly Extreme Sudoku Competition for Dec 4 to Dec 10

Number 846, 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
      9         8
  5     2     4 7
      6     1 2  
  8     7   3   9
      3   8      
4   3   9     8  
  4 5     2      
3 9     8     7  
6         9