Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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