Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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