Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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