Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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