Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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