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.

 

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

 

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