Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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