Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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