Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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