Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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