Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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