Weekly Extreme Sudoku Competition for Apr 3 to Apr 9

Number 237, Extreme
by Crosswords Ltd. October 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
  6           2 7
7                
9   8   7   1 5  
      4 9     3  
    1 7   2 5    
  8     5 3      
  1 7   8   3   6
                5
6 4           1