Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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