Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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