Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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