Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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