Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 1 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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