Weekly Extreme Sudoku Competition for Dec 8 to Dec 14

Number 690, 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 5    
1             2  
9 7              
7     3       8  
      8   5      
  3       2   1 7
      5       9 2
  2             3
    9 2 6     7