Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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