Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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