Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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