Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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