Weekly Extreme Sudoku Competition for May 17 to May 23

Number 452, 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
3         2     5
      3       9  
  6 7       4 3  
  3   4   5      
2     8   1     9
          6   1  
  7 5       9 2  
  8       7      
4     2