Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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