Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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