Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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