Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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