Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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