Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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