Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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