Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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