Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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