Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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