Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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