Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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