Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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