Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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