Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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