Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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