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.

 

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

 

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