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.

 

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

 

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