Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 2 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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