Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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