Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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