Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 3 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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