Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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