Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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