Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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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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