Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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