Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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