Weekly Extreme Sudoku Competition for Jun 12 to Jun 18

Number 508, 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
        6   5    
      7         2
8 3              
    2   8   4   6
  8       7      
    1       2    
  2 6         7 4
4         3      
    5   2