Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 1 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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