Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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