Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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