Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 1 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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