Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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