Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 1 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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