Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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