Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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