Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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