Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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