Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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