Weekly Extreme Sudoku Competition for Sep 18 to Sep 24

Number 522, Extreme
by Crosswords Ltd. September puzzle packs Now Out!. Thanks for supporting our site.

All entries must be in by the end of Saturday, Sep 24 23:59 EST, USA
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
        6        
      2     1 8  
    3 9   1 5    
  7 6 4         5
  4     9     7  
1         3 2 4  
    1 7   9 3    
  2 5     8      
        2