Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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