Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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