Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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