Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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