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

 

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