Weekly Extreme Sudoku Competition for May 11 to May 17

Number 86, 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   4          
    8 3   2 9    
2       7       8
3   1     9 4    
                 
    9 5     7   1
8       2       9
    2 1   5 3    
          4   7