Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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