Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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