Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 8 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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