Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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