Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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