Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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