Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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