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

 

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