Weekly Extreme Sudoku Competition for Apr 23 to Apr 29

Number 553, 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
    5 4     9    
  4       5   6  
9         2   3  
                8
  6       3   5  
2     6 4        
  7   2         3
      5       7  
    3     7 8