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.

 

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

 

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