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.

 

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

 

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