Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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