Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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