Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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