Weekly Extreme Sudoku Competition for Feb 1 to Feb 7

Number 6357, Extreme
by Crosswords Ltd. February 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
      2   8      
9   8       5    
  3     9     7  
  2   9   3   6  
8       6       7
  4   5   7   1  
  7     1     8  
    1       3   2
      6   4