Weekly Extreme Sudoku Competition for Feb 7 to Feb 13

Number 177, 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
  5     7 8   2  
6   7 9       1 4
8               5
          7      
9       1       7
      8          
3               9
1 6       9 2   8
  8   2 3     6