Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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