Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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