Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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