Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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