Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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