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.

 

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

 

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