Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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