Weekly Extreme Sudoku Competition for Feb 1 to Feb 7

Number 124, Extreme
by Crosswords Ltd. August 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   6   7     9
    5       3 8  
  4   9     7    
  8   1   9      
  1           7  
      7   8   6  
    4     1   9  
  5         4    
9     5   2   1