Weekly Extreme Sudoku Competition for May 1 to May 7

Number 502, 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
3       5       4
    2     9     8
  7   1          
    6 5     8   2
  2           1  
    4     2 6    
        9 5   2  
4     2     5    
        3       7