Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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