Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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