Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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