Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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