Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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