Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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