Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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