Weekly Extreme Sudoku Competition for May 31 to Jun 6

Number 454, Extreme
by Crosswords Ltd. August 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 9       4 1
6     1 7   8    
9     2         6
            4    
  7   8   1   5  
    8            
          7     4
    1           9
7 9       3