Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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