Weekly Extreme Sudoku Competition for Jun 6 to Jun 12

Number 768, Extreme
by Crosswords Ltd. March 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
4         7     5
  2              
8       5 6 2    
    4   7        
  3 1       7 6  
        2   8    
    7   4   1   9
            5 4  
5     9         7