Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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