Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 4 is invalid. Go back and make a different choice.

 

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

 

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