Weekly Extreme Sudoku Competition for Apr 28 to May 4

Number 345, 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
        8   5 4  
7     9   2     1
  2              
  4 9     3 6 8  
                 
      4     9    
  7           3  
      5   7     9
  6 1   4