Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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