Weekly Extreme Sudoku Competition for Jul 24 to Jul 30

Number 253, Extreme
by Crosswords Ltd. December 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
3           6    
8       9       4
  5   3       8  
  9     4   5    
      9   2      
    4 6 8     7  
  4       1     7
6       2        
    3           8