Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 3 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

1
8
4
3
7
3
2
9
6
3
6
5
2
1
9
4
7
8
7
9
2
       
   6
       
8
       
   6
       
5
3
1
       
   6
    
1
5
3
4
3
       
      6
    
2
9
       
      6
    
2
4
1
9
7
       
      6
    
5
3
9
7
3
       
      6
    
2
5
       
   6
    
1
       
   6
       
7
3
2
9
6
8
4
5
1
9
4
6
5
3
1
7
8
2
1
5
8
2
4
7
3
6
9

 

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