Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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