Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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