Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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