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

 

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