Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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