Weekly Extreme Sudoku Competition for Feb 25 to Mar 3

Number 597, Extreme
by Crosswords Ltd. December 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    
    8 5       1  
  6   1   3   5  
  1     2 5 4    
    9       1    
      4       3  
  7   9   6   2  
  2       7 3   5
    5