Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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