Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Go back and make a different choice.

 

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

 

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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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