Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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