Langer's Sudoku Assistant

Invalid Sudoku!

Row 1 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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