Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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