Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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