Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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