Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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