Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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