Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 2 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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