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

 

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