Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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