Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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