Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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