Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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