Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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