Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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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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