Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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