Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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