Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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