Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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