Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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