Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 2 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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