Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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