Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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