Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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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