Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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