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.

 

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

 

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