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.

 

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

 

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