Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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