Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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