Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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