Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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