Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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