Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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