Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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