Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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