Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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