Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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