Weekly Extreme Sudoku Competition for May 27 to Jun 2

Number 610, 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           7  
          4      
  5     3   9    
    9   8   5    
    2 9   3 4    
    5   1   3    
  3 1   9   2 5  
          1      
  9           8