Weekly Extreme Sudoku Competition for Jul 23 to Jul 29

Number 566, 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
7       1 6   3  
  3              
6         2     7
4   8 1          
  7           4  
          5 2   6
9         8     2
              5  
  2   7 3       8