Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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