Weekly Extreme Sudoku Competition for Apr 10 to Apr 16

Number 812, Extreme
by Crosswords Ltd. March 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               2
  6   2       3 4
4         7      
  9     1        
    4       5    
      6       8  
9     3         7
  2     7 8   1  
8               3