Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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