Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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