Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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