Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 1 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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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