Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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