Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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