Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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