Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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