Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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