Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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