Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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