Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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