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.

 

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

 

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