Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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