Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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