Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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