Weekly Extreme Sudoku Competition for Jan 17 to Jan 23

Number 487, Extreme
by Crosswords Ltd. November 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
        2       3
          1      
    4   6   8 2 7
5   1       3 9  
  7           8  
  3 2       7   6
6   5   9   1    
      6   3      
8       1