Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

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

 

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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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