Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

Start Over

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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