Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 1 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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