Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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