Weekly Extreme Sudoku Competition for Dec 25 to Dec 31

Number 536, 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
9     8 3       5
    8       7   9
  5     7 9   4  
    9 6          
    2       5    
          8 1    
  9     1     7  
2   3       4    
5       2 6     1