Weekly Extreme Sudoku Competition for Jun 7 to Jun 13

Number 455, Extreme
by Crosswords Ltd. October 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
5   4     9     2
    2           6
7 1         9    
        3       4
  5 7       8 2  
9       1        
    6   5     8 9
1                
4     8     6   3