Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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