Weekly Extreme Sudoku Competition for Jan 21 to Jan 27

Number 592, Extreme
by Crosswords Ltd. January puzzle packs Now Out!. Thanks for supporting our site.

All entries must be in by the end of Saturday, Jan 27 23:59 EST, USA
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
  9   2   3      
  8 6         9  
                 
        6 9 7    
    4 7   5   6  
    1 3          
                 
  5         8 2  
      8   4 3 1 6