Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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Take any Sudoku puzzle you are having trouble with -- or any one at all -- and enter the initial values. With each entry the proscribed options are eliminated for you

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