Weekly Extreme Sudoku Competition for May 8 to May 14

Number 503, Extreme
by Crosswords Ltd. January 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   4      
3 1     6        
                4
2 8   3 5       1
  9           2  
1       7     9 6
8               3
        8     4 2
      5   7   1