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.

 

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

 

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