Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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