Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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