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

 

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