Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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