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

 

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