Weekly Extreme Sudoku Competition for May 1 to May 7

Number 815, 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 8     4 7   5  
  9 7         6  
          2      
9     5          
  6 1   7   5 3  
          6     4
      7          
  7         3 1  
  5   4 6     8 7