Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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