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.

 

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

 

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