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

 

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