Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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