Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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