Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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