Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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