Langer's Sudoku Assistant

Invalid Sudoku!

Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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