Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 6 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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